All tests pass

build.gradle.kts

@@ -1,5 +1,5 @@
 plugins {
-    id("ru.mipt.npm.gradle.project")
+    id("space.kscience.gradle.project")
 //    id("org.jetbrains.kotlinx.kover") version "0.5.0"
 }
 

cern-root-loader/build.gradle.kts

@@ -1,5 +1,5 @@
 plugins {
-    id("ru.mipt.npm.gradle.mpp")
+    id("space.kscience.gradle.mpp")
 }
 
 kscience{

cern-root-loader/src/commonMain/kotlin/ru/mipt/npm/root/dRootToSolid.kt

@@ -321,7 +321,7 @@ private fun buildVolume(volume: DGeoVolume, context: RootToSolidContext): Solid?
     }
     return if (group.children.isEmpty()) {
         null
-    } else if (group.items.size == 1 && group.properties.raw == null) {
+    } else if (group.items.size == 1 && group.properties.own == null) {
         group.items.values.first().apply { parent = null }
     } else {
         group

demo/gdml/build.gradle.kts

@@ -1,8 +1,8 @@
-import ru.mipt.npm.gradle.DependencyConfiguration
+import space.kscience.gradle.DependencyConfiguration
-import ru.mipt.npm.gradle.FXModule
+import space.kscience.gradle.FXModule
 
 plugins {
-    id("ru.mipt.npm.gradle.mpp")
+    id("space.kscience.gradle.mpp")
     application
 }
 
@@ -36,7 +36,7 @@ kotlin {
         jvmMain {
             dependencies {
                 implementation(project(":visionforge-fx"))
-                implementation("ch.qos.logback:logback-classic:1.2.5")
+                implementation("ch.qos.logback:logback-classic:1.2.11")
             }
         }
         jsMain {

demo/gdml/src/commonTest/kotlin/space/kscience/visionforge/gdml/GDMLVisionTest.kt

@@ -6,7 +6,6 @@ import space.kscience.dataforge.names.Name
 import space.kscience.gdml.GdmlShowCase
 import space.kscience.visionforge.Vision
 import space.kscience.visionforge.get
-import space.kscience.visionforge.getPropertyValue
 import space.kscience.visionforge.solid.Solid
 import space.kscience.visionforge.solid.SolidMaterial
 import space.kscience.visionforge.solid.material
@@ -20,7 +19,7 @@ class GDMLVisionTest {
     @Test
     fun testCubesStyles(){
         val segment = cubes.children["composite-000.segment-0"] as Solid
-        println(segment.getPropertyValue(Vision.STYLE_KEY))
+        println(segment.properties.getValue(Vision.STYLE_KEY))
 //        println(segment.computePropertyNode(SolidMaterial.MATERIAL_KEY))
 //        println(segment.computeProperty(SolidMaterial.MATERIAL_COLOR_KEY))
 
@@ -34,7 +33,7 @@ class GDMLVisionTest {
     fun testPrototypeProperty() {
         val child = cubes[Name.of("composite-000","segment-0")]
         assertNotNull(child)
-        child.setPropertyValue(SolidMaterial.MATERIAL_COLOR_KEY, "red".asValue())
+        child.properties.setValue(SolidMaterial.MATERIAL_COLOR_KEY, "red".asValue())
-        assertEquals("red", child.getProperty(SolidMaterial.MATERIAL_COLOR_KEY).string)
+        assertEquals("red", child.properties.getProperty(SolidMaterial.MATERIAL_COLOR_KEY).string)
     }
 }

demo/gdml/src/jsMain/kotlin/space/kscience/visionforge/gdml/demo/GDMLAppComponent.kt

@@ -26,6 +26,7 @@ import space.kscience.visionforge.setAsRoot
 import space.kscience.visionforge.solid.Solid
 import space.kscience.visionforge.solid.Solids
 import space.kscience.visionforge.solid.ambientLight
+import space.kscience.visionforge.solid.set
 import styled.css
 import styled.styledDiv
 
@@ -56,7 +57,7 @@ val GDMLApp = fc<GDMLAppProps>("GDMLApp") { props ->
                             console.info("Marking layers for file $name")
                             markLayers()
                             ambientLight {
-                                color(Colors.white)
+                                color.set(Colors.white)
                             }
                         }
                     }

demo/gdml/src/jsMain/kotlin/space/kscience/visionforge/gdml/demo/GdmlJsDemoApp.kt

@@ -10,6 +10,7 @@ import space.kscience.visionforge.Colors
 import space.kscience.visionforge.gdml.toVision
 import space.kscience.visionforge.react.render
 import space.kscience.visionforge.solid.ambientLight
+import space.kscience.visionforge.solid.set
 import space.kscience.visionforge.solid.three.ThreePlugin
 import space.kscience.visionforge.startApplication
 import styled.injectGlobal
@@ -46,7 +47,7 @@ private class GDMLDemoApp : Application {
             child(GDMLApp) {
                 val vision = GdmlShowCase.cubes().toVision().apply {
                     ambientLight {
-                        color(Colors.white)
+                        color.set(Colors.white)
                     }
                 }
                 //println(context.plugins.fetch(VisionManager).encodeToString(vision))

demo/js-playground/build.gradle.kts

@@ -1,5 +1,5 @@
 plugins {
-    id("ru.mipt.npm.gradle.js")
+    id("space.kscience.gradle.js")
 }
 
 kscience{

demo/muon-monitor/build.gradle.kts

@@ -1,5 +1,5 @@
 plugins {
-    id("ru.mipt.npm.gradle.mpp")
+    id("space.kscience.gradle.mpp")
     application
 }
 

demo/muon-monitor/src/commonMain/kotlin/ru/mipt/npm/muon/monitor/Model.kt

@@ -69,7 +69,7 @@ class Model(val manager: VisionManager) {
 
     fun reset() {
         map.values.forEach {
-            it.properties[SolidMaterial.MATERIAL_COLOR_KEY] = null
+            it.properties.setProperty(SolidMaterial.MATERIAL_COLOR_KEY, null)
         }
         tracks.children.clear()
     }

demo/muon-monitor/src/jsMain/kotlin/ru/mipt/npm/muon/monitor/MMAppComponent.kt

@@ -25,6 +25,7 @@ import space.kscience.visionforge.react.flexRow
 import space.kscience.visionforge.ring.ThreeCanvasWithControls
 import space.kscience.visionforge.ring.tab
 import space.kscience.visionforge.solid.ambientLight
+import space.kscience.visionforge.solid.set
 import space.kscience.visionforge.solid.specifications.Canvas3DOptions
 import space.kscience.visionforge.solid.three.edges
 import styled.css
@@ -57,7 +58,7 @@ val MMApp = fc<MMAppProps>("Muon monitor") { props ->
         props.model.root.apply {
             edges()
             ambientLight{
-                color(Colors.white)
+                color.set(Colors.white)
             }
         }
     }

demo/muon-monitor/src/jsMain/kotlin/ru/mipt/npm/muon/monitor/MMDemoApp.kt

@@ -17,6 +17,7 @@ private class MMDemoApp : Application {
         val context = Context("MM-demo") {
             plugin(ThreePlugin)
         }
+
         val visionManager = context.fetch(VisionManager)
 
         val model = Model(visionManager)

demo/muon-monitor/src/jsMain/resources/index.html

@@ -5,7 +5,6 @@
     <!--    <meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">-->
     <title>Three js demo for particle physics</title>
     <script type="text/javascript" src="muon-monitor.js"></script>
-    <link rel="stylesheet" href="css/custom-bootstrap.css">
 </head>
 <body class="application">
 <div class="container-fluid max-vh-100" id = "app"> </div>

demo/sat-demo/build.gradle.kts

@@ -1,5 +1,5 @@
 plugins {
-    id("ru.mipt.npm.gradle.jvm")
+    id("space.kscience.gradle.jvm")
     application
 }
 

demo/solid-showcase/build.gradle.kts

@@ -1,8 +1,8 @@
-import ru.mipt.npm.gradle.DependencyConfiguration
+import space.kscience.gradle.DependencyConfiguration
-import ru.mipt.npm.gradle.FXModule
+import space.kscience.gradle.FXModule
 
 plugins {
-    id("ru.mipt.npm.gradle.mpp")
+    id("space.kscience.gradle.mpp")
     application
 }
 

demo/solid-showcase/src/jsMain/kotlin/space/kscience/visionforge/solid/demo/VariableBox.kt

@@ -4,7 +4,6 @@ import info.laht.threekt.core.Object3D
 import info.laht.threekt.geometries.BoxGeometry
 import info.laht.threekt.objects.Mesh
 import space.kscience.dataforge.meta.asValue
-import space.kscience.dataforge.meta.get
 import space.kscience.dataforge.meta.int
 import space.kscience.dataforge.meta.number
 import space.kscience.dataforge.names.asName
@@ -43,13 +42,13 @@ internal class VariableBox(val xSize: Number, val ySize: Number) : ThreeJsVision
                 it.layers.enable(this@VariableBox.layer)
             }
         }
-        mesh.scale.z = meta[VALUE].number?.toDouble() ?: 1.0
+        mesh.scale.z = properties.getValue(VALUE)?.number?.toDouble() ?: 1.0
 
         //add listener to object properties
         onPropertyChange { name ->
             when {
                 name == VALUE -> {
-                    val value = meta[VALUE].int ?: 0
+                    val value = properties.getValue(VALUE)?.int ?: 0
                     val size = value.toFloat() / 255f * 20f
                     mesh.scale.z = size.toDouble()
                     mesh.position.z = size.toDouble() / 2
@@ -69,9 +68,9 @@ internal class VariableBox(val xSize: Number, val ySize: Number) : ThreeJsVision
     }
 
     var value: Int
-        get() = meta[VALUE].int ?: 0
+        get() = properties.getValue(VALUE)?.int ?: 0
         set(value) {
-            setPropertyValue(VALUE, value.asValue())
+            properties.setValue(VALUE, value.asValue())
         }
 
     companion object {

gradle.properties

@@ -6,4 +6,4 @@ kotlin.jupyter.add.scanner=false
 org.gradle.parallel=true
 org.gradle.jvmargs=-Xmx4G
 
-toolsVersion=0.11.8-kotlin-1.7.10
+toolsVersion=0.12.0-kotlin-1.7.20-Beta

jupyter/build.gradle.kts

@@ -1,5 +1,5 @@
 plugins {
-    id("ru.mipt.npm.gradle.mpp")
+    id("space.kscience.gradle.mpp")
     id("org.jetbrains.kotlin.jupyter.api")
 }
 
@@ -21,5 +21,5 @@ kotlin {
 }
 
 readme {
-    maturity = ru.mipt.npm.gradle.Maturity.EXPERIMENTAL
+    maturity = space.kscience.gradle.Maturity.EXPERIMENTAL
 }

jupyter/visionforge-jupyter-gdml/build.gradle.kts

@@ -1,5 +1,5 @@
 plugins {
-    id("ru.mipt.npm.gradle.mpp")
+    id("space.kscience.gradle.mpp")
 }
 
 description = "Jupyter api artifact for GDML rendering"
@@ -56,5 +56,5 @@ kscience {
 }
 
 readme {
-    maturity = ru.mipt.npm.gradle.Maturity.EXPERIMENTAL
+    maturity = space.kscience.gradle.Maturity.EXPERIMENTAL
 }

settings.gradle.kts

@@ -15,10 +15,10 @@ pluginManagement {
     }
 
     plugins {
-        id("ru.mipt.npm.gradle.project") version toolsVersion
+        id("space.kscience.gradle.project") version toolsVersion
-        id("ru.mipt.npm.gradle.mpp") version toolsVersion
+        id("space.kscience.gradle.mpp") version toolsVersion
-        id("ru.mipt.npm.gradle.jvm") version toolsVersion
+        id("space.kscience.gradle.jvm") version toolsVersion
-        id("ru.mipt.npm.gradle.js") version toolsVersion
+        id("space.kscience.gradle.js") version toolsVersion
     }
 }
 
@@ -34,7 +34,7 @@ dependencyResolutionManagement {
 
     versionCatalogs {
         create("npmlibs") {
-            from("ru.mipt.npm:version-catalog:$toolsVersion")
+            from("space.kscience:version-catalog:$toolsVersion")
         }
     }
 }

ui/bootstrap/build.gradle.kts

@@ -1,6 +1,6 @@
 plugins {
     kotlin("js")
-    id("ru.mipt.npm.gradle.js")
+    id("space.kscience.gradle.js")
 }
 
 val dataforgeVersion: String by rootProject.extra

ui/bootstrap/src/main/kotlin/space/kscience/visionforge/bootstrap/outputConfig.kt

@@ -1,5 +1,6 @@
 package space.kscience.visionforge.bootstrap
 
+import kotlinx.coroutines.GlobalScope
 import kotlinx.css.BorderStyle
 import kotlinx.css.Color
 import kotlinx.css.padding
@@ -15,7 +16,6 @@ import react.RBuilder
 import react.dom.attrs
 import react.dom.button
 import react.fc
-import space.kscience.dataforge.meta.withDefault
 import space.kscience.visionforge.Vision
 import space.kscience.visionforge.encodeToString
 import space.kscience.visionforge.react.flexColumn
@@ -69,8 +69,8 @@ public val CanvasControls: FC<CanvasControlsProps> = fc("CanvasControls") { prop
             }
         }
         propertyEditor(
-            ownProperties = props.canvasOptions.meta,
+            scope = props.vision?.manager?.context ?: GlobalScope,
-            allProperties = props.canvasOptions.meta.withDefault(Canvas3DOptions.descriptor.defaultNode),
+            properties = props.canvasOptions.meta,
             descriptor = Canvas3DOptions.descriptor,
             expanded = false
         )

ui/bootstrap/src/main/kotlin/space/kscience/visionforge/bootstrap/visionPropertyEditor.kt

@@ -3,13 +3,16 @@ package space.kscience.visionforge.bootstrap
 import org.w3c.dom.Element
 import react.RBuilder
 import react.dom.client.createRoot
+import react.key
 import space.kscience.dataforge.meta.descriptors.MetaDescriptor
+import space.kscience.dataforge.meta.get
 import space.kscience.visionforge.Vision
-import space.kscience.visionforge.computeProperties
 import space.kscience.visionforge.getStyle
+import space.kscience.visionforge.react.EditorPropertyState
+import space.kscience.visionforge.react.PropertyEditor
 import space.kscience.visionforge.react.metaViewer
-import space.kscience.visionforge.react.propertyEditor
 import space.kscience.visionforge.react.render
+import space.kscience.visionforge.root
 import space.kscience.visionforge.solid.SolidReference
 import space.kscience.visionforge.styles
 
@@ -20,12 +23,25 @@ public fun RBuilder.visionPropertyEditor(
 ) {
 
     card("Properties") {
-        propertyEditor(
+        child(PropertyEditor){
-            ownProperties = vision.meta,
+            attrs{
-            allProperties = vision.computeProperties(),
+                this.key = key?.toString()
-            descriptor = descriptor,
+                this.meta = vision.properties.root()
-            key = key
+                this.updates = vision.properties.changes
-        )
+                this.descriptor = descriptor
+                this.scope = vision.manager?.context ?: error("Orphan vision could not be observed")
+                this.getPropertyState = {name->
+                    if(vision.properties.own?.get(name)!= null){
+                        EditorPropertyState.Defined
+                    } else if(vision.properties.root()[name] != null){
+                        // TODO differentiate
+                        EditorPropertyState.Default()
+                    } else {
+                        EditorPropertyState.Undefined
+                    }
+                }
+            }
+        }
     }
     val styles = if (vision is SolidReference) {
         (vision.styles + vision.prototype.styles).distinct()

ui/react/build.gradle.kts

@@ -1,5 +1,5 @@
 plugins {
-    id("ru.mipt.npm.gradle.js")
+    id("space.kscience.gradle.js")
 }
 
 dependencies{

ui/react/src/main/kotlin/space/kscience/visionforge/react/MultiSelectChooser.kt

@@ -25,7 +25,7 @@ public val MultiSelectChooser: FC<ValueChooserProps> = fc("MultiSelectChooser")
     select {
         attrs {
             multiple = true
-            values = (props.actual.value?.list ?: emptyList()).mapTo(HashSet()) { it.string }
+            values = (props.meta.value?.list ?: emptyList()).mapTo(HashSet()) { it.string }
             onChangeFunction = onChange
         }
         props.descriptor?.allowedValues?.forEach { optionValue ->

ui/react/src/main/kotlin/space/kscience/visionforge/react/PropertyEditor.kt

@@ -1,13 +1,18 @@
 package space.kscience.visionforge.react
 
+import kotlinx.coroutines.CoroutineScope
+import kotlinx.coroutines.ExperimentalCoroutinesApi
+import kotlinx.coroutines.flow.Flow
+import kotlinx.coroutines.flow.callbackFlow
+import kotlinx.coroutines.flow.launchIn
+import kotlinx.coroutines.flow.onEach
+import kotlinx.coroutines.launch
 import kotlinx.css.*
 import kotlinx.css.properties.TextDecoration
 import kotlinx.html.js.onClickFunction
-import org.w3c.dom.Element
 import org.w3c.dom.events.Event
 import react.*
 import react.dom.attrs
-import react.dom.client.createRoot
 import space.kscience.dataforge.meta.*
 import space.kscience.dataforge.meta.descriptors.MetaDescriptor
 import space.kscience.dataforge.meta.descriptors.ValueRequirement
@@ -19,17 +24,30 @@ import styled.styledButton
 import styled.styledDiv
 import styled.styledSpan
 
+/**
+ * The display state of a property
+ */
+public sealed class EditorPropertyState {
+    public object Defined : EditorPropertyState()
+    public class Default(public val source: String = "unknown") : EditorPropertyState()
+
+    public object Undefined : EditorPropertyState()
+
+}
+
+
 public external interface PropertyEditorProps : Props {
 
     /**
      * Root config object - always non-null
      */
-    public var meta: ObservableMutableMeta
+    public var meta: MutableMeta
 
-    /**
+    public var getPropertyState: (Name) -> EditorPropertyState
-     * Provide default item (greyed out if used)
+
-     */
+    public var scope: CoroutineScope
-    public var withDefault: MetaProvider
+
+    public var updates: Flow<Name>
 
     /**
      * Full path to the displayed node in [meta]. Could be empty
@@ -54,7 +72,7 @@ private val PropertyEditorItem: FC<PropertyEditorProps> = fc("PropertyEditorItem
 private fun RBuilder.propertyEditorItem(props: PropertyEditorProps) {
     var expanded: Boolean by useState { props.expanded ?: true }
     val descriptor: MetaDescriptor? = useMemo(props.descriptor, props.name) { props.descriptor?.get(props.name) }
-    var ownProperty: ObservableMutableMeta by useState { props.meta.getOrCreate(props.name) }
+    var property: MutableMeta by useState { props.meta.getOrCreate(props.name) }
 
     val keys = useMemo(descriptor) {
         buildSet {
@@ -70,17 +88,18 @@ private fun RBuilder.propertyEditorItem(props: PropertyEditorProps) {
     val token = props.name.lastOrNull()?.toString() ?: "Properties"
 
     fun update() {
-        ownProperty = props.meta.getOrCreate(props.name)
+        property = props.meta.getOrCreate(props.name)
     }
 
     useEffect(props.meta) {
-        props.meta.onChange(props) { updatedName ->
+        val job = props.updates.onEach { updatedName ->
             if (updatedName == props.name) {
                 update()
             }
-        }
+        }.launchIn(props.scope)
+
         cleanup {
-            props.meta.removeListener(props)
+            job.cancel()
         }
     }
 
@@ -115,7 +134,7 @@ private fun RBuilder.propertyEditorItem(props: PropertyEditorProps) {
         styledSpan {
             css {
                 +TreeStyles.treeLabel
-                if (ownProperty.isEmpty()) {
+                if (property.isEmpty()) {
                     +TreeStyles.treeLabelInactive
                 }
             }
@@ -131,8 +150,8 @@ private fun RBuilder.propertyEditorItem(props: PropertyEditorProps) {
                 ValueChooser {
                     attrs {
                         this.descriptor = descriptor
-                        this.meta = ownProperty
+                        this.meta = property
-                        this.actual = props.withDefault.getMeta(props.name) ?: ownProperty
+                        this.state = props.getPropertyState(props.name)
                     }
                 }
             }
@@ -156,7 +175,7 @@ private fun RBuilder.propertyEditorItem(props: PropertyEditorProps) {
                 }
                 +"\u00D7"
                 attrs {
-                    if (ownProperty.isEmpty()) {
+                    if (property.isEmpty()) {
                         disabled = true
                     } else {
                         onClickFunction = removeClick
@@ -179,9 +198,11 @@ private fun RBuilder.propertyEditorItem(props: PropertyEditorProps) {
                         attrs {
                             this.key = props.name.toString()
                             this.meta = props.meta
-                            this.withDefault = props.withDefault
                             this.name = props.name + token
                             this.descriptor = props.descriptor
+                            this.scope = props.scope
+                            this.getPropertyState = { props.getPropertyState(props.name + token) }
+                            this.updates = props.updates
                         }
                     }
                     //configEditor(props.root, props.name + token, props.descriptor, props.default)
@@ -197,44 +218,51 @@ public val PropertyEditor: FC<PropertyEditorProps> = fc("PropertyEditor") { prop
         attrs {
             this.key = ""
             this.meta = props.meta
-            this.withDefault = props.withDefault
             this.name = Name.EMPTY
             this.descriptor = props.descriptor
             this.expanded = props.expanded
+            this.scope = props.scope
+            this.getPropertyState = props.getPropertyState
+            this.updates = props.updates
         }
     }
 }
 
+@OptIn(ExperimentalCoroutinesApi::class)
 public fun RBuilder.propertyEditor(
-    ownProperties: ObservableMutableMeta,
+    scope: CoroutineScope,
-    allProperties: MetaProvider = ownProperties,
+    properties: ObservableMutableMeta,
     descriptor: MetaDescriptor? = null,
     key: Any? = null,
     expanded: Boolean? = null,
 ) {
     child(PropertyEditor) {
         attrs {
-            this.meta = ownProperties
+            this.meta = properties
-            this.withDefault = allProperties
             this.descriptor = descriptor
             this.key = key?.toString() ?: ""
             this.expanded = expanded
+            this.scope = scope
+            this.getPropertyState = { name ->
+                if (properties[name] != null) {
+                    EditorPropertyState.Defined
+                } else if (descriptor?.get(name)?.defaultValue != null) {
+                    EditorPropertyState.Default("descriptor")
+                } else {
+                    EditorPropertyState.Undefined
+                }
+            }
+            this.updates = callbackFlow {
+                properties.onChange(scope) { name ->
+                    scope.launch {
+                        send(name)
+                    }
+                }
+
+                invokeOnClose {
+                    properties.removeListener(scope)
+                }
+            }
         }
     }
-}
-
-public fun RBuilder.configEditor(
-    config: ObservableMutableMeta,
-    default: MetaProvider = config,
-    descriptor: MetaDescriptor? = null,
-    key: Any? = null,
-): Unit = propertyEditor(config, default, descriptor, key = key)
-
-public fun Element.configEditor(
-    config: ObservableMutableMeta,
-    default: Meta = config,
-    descriptor: MetaDescriptor? = null,
-    key: Any? = null,
-): Unit = createRoot(this).render {
-    configEditor(config, default, descriptor, key = key)
 }

ui/react/src/main/kotlin/space/kscience/visionforge/react/RangeValueChooser.kt

@@ -20,7 +20,7 @@ import styled.styledInput
 
 @JsExport
 public val RangeValueChooser: FC<ValueChooserProps> = fc("RangeValueChooser") { props ->
-    var innerValue by useState(props.actual.double)
+    var innerValue by useState(props.meta.double)
     var rangeDisabled: Boolean by useState(props.meta.value == null)
 
     val handleDisable: (Event) -> Unit = {

ui/react/src/main/kotlin/space/kscience/visionforge/react/VisionTree.kt

@@ -16,6 +16,7 @@ import space.kscience.dataforge.names.plus
 import space.kscience.dataforge.names.startsWith
 import space.kscience.visionforge.Vision
 import space.kscience.visionforge.VisionGroup
+import space.kscience.visionforge.asSequence
 import space.kscience.visionforge.isEmpty
 import styled.css
 import styled.styledDiv
@@ -59,9 +60,9 @@ private fun RBuilder.visionTree(props: ObjectTreeProps): Unit {
     val obj = props.obj
 
     //display as node if any child is visible
-    if (obj is VisionGroup<*>) {
+    if (obj is VisionGroup) {
         flexRow {
-            if (obj.items.any { !it.key.body.startsWith("@") }) {
+            if (obj.children.keys.any { !it.body.startsWith("@") }) {
                 styledSpan {
                     css {
                         +TreeStyles.treeCaret
@@ -81,9 +82,9 @@ private fun RBuilder.visionTree(props: ObjectTreeProps): Unit {
                 css {
                     +TreeStyles.tree
                 }
-                obj.items.entries
+                obj.children.asSequence()
-                    .filter { !it.key.toString().startsWith("@") } // ignore statics and other hidden children
+                    .filter { !it.first.toString().startsWith("@") } // ignore statics and other hidden children
-                    .sortedBy { (it.value as? VisionGroup<*>)?.isEmpty() ?: true } // ignore empty groups
+                    .sortedBy { (it.second as? VisionGroup)?.children?.isEmpty() ?: true } // ignore empty groups
                     .forEach { (childToken, child) ->
                         styledDiv {
                             css {
@@ -92,7 +93,7 @@ private fun RBuilder.visionTree(props: ObjectTreeProps): Unit {
                             child(ObjectTree) {
                                 attrs {
                                     this.name = props.name + childToken
-                                    this.obj = child.vision
+                                    this.obj = child
                                     this.selected = props.selected
                                     this.clickCallback = props.clickCallback
                                 }

ui/react/src/main/kotlin/space/kscience/visionforge/react/valueChooser.kt

@@ -27,13 +27,13 @@ import styled.styledSelect
 
 public external interface ValueChooserProps : Props {
     public var descriptor: MetaDescriptor?
-    public var meta: ObservableMutableMeta
+    public var meta: MutableMeta
-    public var actual: Meta
+    public var state: EditorPropertyState
 }
 
 @JsExport
 public val StringValueChooser: FC<ValueChooserProps> = fc("StringValueChooser") { props ->
-    var value by useState(props.actual.string ?: "")
+    var value by useState(props.meta.string ?: "")
     val keyDown: (Event) -> Unit = { event ->
         if (event.type == "keydown" && event.asDynamic().key == "Enter") {
             value = (event.target as HTMLInputElement).value
@@ -67,7 +67,7 @@ public val BooleanValueChooser: FC<ValueChooserProps> = fc("BooleanValueChooser"
         }
         attrs {
             //this.attributes["indeterminate"] = (props.item == null).toString()
-            checked = props.actual.boolean ?: false
+            checked = props.meta.boolean ?: false
             onChangeFunction = handleChange
         }
     }
@@ -75,7 +75,7 @@ public val BooleanValueChooser: FC<ValueChooserProps> = fc("BooleanValueChooser"
 
 @JsExport
 public val NumberValueChooser: FC<ValueChooserProps> = fc("NumberValueChooser") { props ->
-    var innerValue by useState(props.actual.string ?: "")
+    var innerValue by useState(props.meta.string ?: "")
     val keyDown: (Event) -> Unit = { event ->
         if (event.type == "keydown" && event.asDynamic().key == "Enter") {
             innerValue = (event.target as HTMLInputElement).value
@@ -113,7 +113,7 @@ public val NumberValueChooser: FC<ValueChooserProps> = fc("NumberValueChooser")
 
 @JsExport
 public val ComboValueChooser: FC<ValueChooserProps> = fc("ComboValueChooser") { props ->
-    var selected by useState(props.actual.string ?: "")
+    var selected by useState(props.meta.string ?: "")
     val handleChange: (Event) -> Unit = {
         selected = (it.target as HTMLSelectElement).value
         props.meta.value = selected.asValue()
@@ -128,7 +128,7 @@ public val ComboValueChooser: FC<ValueChooserProps> = fc("ComboValueChooser") {
             }
         }
         attrs {
-            this.value = props.actual.string ?: ""
+            this.value = props.meta.string ?: ""
             multiple = false
             onChangeFunction = handleChange
         }
@@ -146,7 +146,7 @@ public val ColorValueChooser: FC<ValueChooserProps> = fc("ColorValueChooser") {
             margin(0.px)
         }
         attrs {
-            this.value = props.actual.value?.let { value ->
+            this.value = props.meta.value?.let { value ->
                 if (value.type == ValueType.NUMBER) Colors.rgbToString(value.int)
                 else value.string
             } ?: "#000000"

ui/ring/build.gradle.kts

@@ -1,5 +1,5 @@
 plugins {
-    id("ru.mipt.npm.gradle.js")
+    id("space.kscience.gradle.js")
 }
 
 val dataforgeVersion: String by rootProject.extra

ui/ring/src/main/kotlin/space.kscience.visionforge.ring/ThreeViewWithControls.kt

@@ -9,18 +9,19 @@ import react.dom.div
 import react.dom.span
 import ringui.*
 import space.kscience.dataforge.context.Context
+import space.kscience.dataforge.meta.get
 import space.kscience.dataforge.names.Name
 import space.kscience.dataforge.names.NameToken
 import space.kscience.dataforge.names.isEmpty
 import space.kscience.dataforge.names.length
-import space.kscience.visionforge.*
+import space.kscience.visionforge.Vision
-import space.kscience.visionforge.react.ThreeCanvasComponent
+import space.kscience.visionforge.react.*
-import space.kscience.visionforge.react.flexColumn
+import space.kscience.visionforge.root
-import space.kscience.visionforge.react.flexRow
+import space.kscience.visionforge.setAsRoot
-import space.kscience.visionforge.react.propertyEditor
 import space.kscience.visionforge.solid.Solid
 import space.kscience.visionforge.solid.SolidGroup
 import space.kscience.visionforge.solid.specifications.Canvas3DOptions
+import space.kscience.visionforge.visionManager
 import styled.css
 import styled.styledDiv
 
@@ -38,7 +39,7 @@ public fun ThreeCanvasWithControlsProps.solid(block: SolidGroup.() -> Unit) {
     }
 }
 
-public fun ThreeCanvasWithControlsProps.options(block: Canvas3DOptions.() -> Unit){
+public fun ThreeCanvasWithControlsProps.options(block: Canvas3DOptions.() -> Unit) {
     options = Canvas3DOptions(block)
 }
 
@@ -81,14 +82,14 @@ public fun RBuilder.nameCrumbs(name: Name?, link: (Name) -> Unit): Unit = styled
 
 @JsExport
 public val ThreeCanvasWithControls: FC<ThreeCanvasWithControlsProps> = fc("ThreeViewWithControls") { props ->
-    var selected by useState { props.selected }
+    var selected: Name? by useState { props.selected }
     var solid: Solid? by useState(null)
 
     useEffect {
         props.context.launch {
             solid = props.builderOfSolid.await()
             //ensure that the solid is properly rooted
-            if(solid?.parent == null){
+            if (solid?.parent == null) {
                 solid?.setAsRoot(props.context.visionManager)
             }
         }
@@ -164,12 +165,25 @@ public val ThreeCanvasWithControls: FC<ThreeCanvasWithControlsProps> = fc("Three
                             nameCrumbs(selected) { selected = it }
                         }
                         IslandContent {
-                            propertyEditor(
+                            child(PropertyEditor) {
-                                ownProperties = vision.properties(),
+                                attrs {
-                                allProperties = vision.computeProperties(),
+                                    this.key = selected.toString()
-                                descriptor = vision.descriptor,
+                                    this.meta = vision.properties.root()
-                                key = selected
+                                    this.updates = vision.properties.changes
-                            )
+                                    this.descriptor = vision.descriptor
+                                    this.scope = props.context
+                                    this.getPropertyState = { name ->
+                                        if (vision.properties.own?.get(name) != null) {
+                                            EditorPropertyState.Defined
+                                        } else if (vision.properties.root()[name] != null) {
+                                            // TODO differentiate
+                                            EditorPropertyState.Default()
+                                        } else {
+                                            EditorPropertyState.Undefined
+                                        }
+                                    }
+                                }
+                            }
                         }
                     }
                 }

ui/ring/src/main/kotlin/space.kscience.visionforge.ring/ringPropertyEditor.kt

@@ -4,17 +4,16 @@ import org.w3c.dom.Element
 import react.RBuilder
 import react.dom.client.createRoot
 import react.dom.p
+import react.key
 import ringui.Island
 import ringui.SmartTabs
 import ringui.Tab
 import space.kscience.dataforge.meta.descriptors.MetaDescriptor
+import space.kscience.dataforge.meta.get
 import space.kscience.visionforge.Vision
-import space.kscience.visionforge.computeProperties
 import space.kscience.visionforge.getStyle
-import space.kscience.visionforge.react.flexColumn
+import space.kscience.visionforge.react.*
-import space.kscience.visionforge.react.metaViewer
+import space.kscience.visionforge.root
-import space.kscience.visionforge.react.propertyEditor
-import space.kscience.visionforge.react.render
 import space.kscience.visionforge.solid.SolidReference
 import space.kscience.visionforge.styles
 
@@ -31,12 +30,25 @@ public fun RBuilder.ringPropertyEditor(
 
     flexColumn {
         Island("Properties") {
-            propertyEditor(
+            child(PropertyEditor) {
-                ownProperties = vision.meta,
+                attrs {
-                allProperties = vision.computeProperties(),
+                    this.key = key?.toString()
-                descriptor = descriptor,
+                    this.meta = vision.properties.root()
-                key = key
+                    this.updates = vision.properties.changes
-            )
+                    this.descriptor = descriptor
+                    this.scope = vision.manager?.context ?: error("Orphan vision could not be observed")
+                    this.getPropertyState = {name->
+                        if(vision.properties.own?.get(name)!= null){
+                            EditorPropertyState.Defined
+                        } else if(vision.properties.root()[name] != null){
+                            // TODO differentiate
+                            EditorPropertyState.Default()
+                        } else {
+                            EditorPropertyState.Undefined
+                        }
+                    }
+                }
+            }
         }
 
         if (styles.isNotEmpty()) {

ui/ring/src/main/kotlin/space.kscience.visionforge.ring/ringThreeControls.kt

@@ -1,5 +1,6 @@
 package space.kscience.visionforge.ring
 
+import kotlinx.coroutines.GlobalScope
 import kotlinx.css.BorderStyle
 import kotlinx.css.Color
 import kotlinx.css.padding
@@ -18,7 +19,6 @@ import react.fc
 import ringui.Island
 import ringui.SmartTabs
 import ringui.Tab
-import space.kscience.dataforge.meta.withDefault
 import space.kscience.dataforge.names.Name
 import space.kscience.visionforge.Vision
 import space.kscience.visionforge.encodeToString
@@ -75,8 +75,8 @@ internal val CanvasControls: FC<CanvasControlsProps> = fc("CanvasControls") { pr
             }
         }
         propertyEditor(
-            ownProperties = props.options.meta,
+            scope = props.vision?.manager?.context ?: GlobalScope,
-            allProperties = props.options.meta.withDefault(Canvas3DOptions.descriptor.defaultNode),
+            properties = props.options.meta,
             descriptor = Canvas3DOptions.descriptor,
             expanded = false
         )

visionforge-core/build.gradle.kts

@@ -1,5 +1,5 @@
 plugins {
-    id("ru.mipt.npm.gradle.mpp")
+    id("space.kscience.gradle.mpp")
 }
 
 val dataforgeVersion: String by rootProject.extra
@@ -28,5 +28,5 @@ kscience{
 }
 
 readme{
-    maturity = ru.mipt.npm.gradle.Maturity.DEVELOPMENT
+    maturity = space.kscience.gradle.Maturity.DEVELOPMENT
 }

visionforge-core/src/commonMain/kotlin/space/kscience/visionforge/StyleSheet.kt

@@ -13,7 +13,7 @@ import kotlin.jvm.JvmInline
 @JvmInline
 public value class StyleSheet(private val owner: Vision) {
 
-    private val styleNode: Meta get() = owner.properties[STYLESHEET_KEY]
+    private val styleNode: Meta get() = owner.properties.getProperty(STYLESHEET_KEY)
 
     public val items: Map<NameToken, Meta> get() = styleNode.items
 
@@ -23,7 +23,7 @@ public value class StyleSheet(private val owner: Vision) {
      * Define a style without notifying owner
      */
     public fun define(key: String, style: Meta?) {
-        owner.properties[STYLESHEET_KEY + key] = style
+        owner.properties.setProperty(STYLESHEET_KEY + key, style)
     }
 
     /**
@@ -86,7 +86,7 @@ public val Vision.styleSheet: StyleSheet get() = StyleSheet(this)
  * Add style name to the list of styles to be resolved later. The style with given name does not necessary exist at the moment.
  */
 public fun Vision.useStyle(name: String) {
-    styles = (properties.getValue(Vision.STYLE_KEY)?.stringList ?: emptyList()) + name
+    styles = (properties.own?.get(Vision.STYLE_KEY)?.stringList ?: emptyList()) + name
 }
 
 
@@ -94,7 +94,7 @@ public fun Vision.useStyle(name: String) {
  * Resolve a style with given name for given [Vision]. The style is not necessarily applied to this [Vision].
  */
 public fun Vision.getStyle(name: String): Meta? =
-    properties.raw?.getMeta(StyleSheet.STYLESHEET_KEY + name) ?: parent?.getStyle(name)
+    properties.own?.getMeta(StyleSheet.STYLESHEET_KEY + name) ?: parent?.getStyle(name)
 
 /**
  * Resolve a property from all styles

visionforge-core/src/commonMain/kotlin/space/kscience/visionforge/Vision.kt

@@ -1,9 +1,9 @@
 package space.kscience.visionforge
 
+import kotlinx.coroutines.CoroutineScope
 import kotlinx.coroutines.Job
 import kotlinx.coroutines.flow.launchIn
 import kotlinx.coroutines.flow.onEach
-import space.kscience.dataforge.context.Global
 import space.kscience.dataforge.meta.asValue
 import space.kscience.dataforge.meta.boolean
 import space.kscience.dataforge.meta.descriptors.Described
@@ -30,7 +30,7 @@ public interface Vision : Described {
     /**
      * Owner [VisionManager]. Used to define coroutine scope a serialization
      */
-    public val manager: VisionManager get() = parent?.manager ?: Global.visionManager
+    public val manager: VisionManager? get() = parent?.manager
 
 
     public val properties: MutableVisionProperties
@@ -67,13 +67,17 @@ public var Vision.visible: Boolean?
 /**
  * Subscribe on property updates. The subscription is bound to the given scope and canceled when the scope is canceled
  */
-public fun Vision.onPropertyChange(callback: (Name) -> Unit): Job = properties.changes.onEach {
+public fun Vision.onPropertyChange(
+    scope: CoroutineScope? = manager?.context,
+    callback: (Name) -> Unit
+): Job = properties.changes.onEach {
     callback(it)
-}.launchIn(manager.context)
+}.launchIn(scope ?: error("Orphan Vision can't observe properties"))
 
 
 public fun <V : Vision, T> V.useProperty(
     property: KProperty1<V, T>,
+    scope: CoroutineScope? = manager?.context,
     callBack: V.(T) -> Unit,
 ): Job {
     //Pass initial value.
@@ -82,5 +86,5 @@ public fun <V : Vision, T> V.useProperty(
         if (name.startsWith(property.name.asName())) {
             callBack(property.get(this@useProperty))
         }
-    }.launchIn(manager.context)
+    }.launchIn(scope ?: error("Orphan Vision can't observe properties"))
 }

visionforge-core/src/commonMain/kotlin/space/kscience/visionforge/VisionChange.kt

@@ -91,8 +91,8 @@ private fun CoroutineScope.collectChange(
 ) {
 
     //Collect properties change
-    source.onPropertyChange { propertyName ->
+    source.onPropertyChange(this) { propertyName ->
-        val newItem = source.properties.raw?.get(propertyName)
+        val newItem = source.properties.own?.get(propertyName)
         collector().propertyChanged(name, propertyName, newItem)
     }
 
@@ -118,8 +118,8 @@ private fun CoroutineScope.collectChange(
  */
 public fun Vision.flowChanges(
     collectionDuration: Duration,
-    manager: VisionManager = this.manager,
 ): Flow<VisionChange> = flow {
+    val manager = manager?: error("Orphan vision could not collect changes")
 
     var collector = VisionChangeBuilder(manager)
     coroutineScope {

visionforge-core/src/commonMain/kotlin/space/kscience/visionforge/VisionContainer.kt

@@ -124,7 +124,7 @@ internal abstract class VisionChildrenImpl(
         return items!!
     }
 
-    private val scope: CoroutineScope get() = group.manager.context
+    private val scope: CoroutineScope? get() = group.manager?.context
 
     override val keys: Set<NameToken> get() = items?.keys ?: emptySet()
 
@@ -134,7 +134,7 @@ internal abstract class VisionChildrenImpl(
     override val changes: SharedFlow<Name> get() = _changes
 
     private fun onChange(name: Name) {
-        scope.launch {
+        scope?.launch {
             _changes.emit(name)
         }
     }
@@ -158,7 +158,7 @@ internal abstract class VisionChildrenImpl(
             //set parent
             value.parent = group
             //start update jobs (only if the vision is rooted)
-            scope.let { scope ->
+            scope?.let { scope ->
                 val job = value.children?.changes?.onEach {
                     onChange(token + it)
                 }?.launchIn(scope)

visionforge-core/src/commonMain/kotlin/space/kscience/visionforge/VisionManager.kt

@@ -107,7 +107,8 @@ public abstract class VisionPlugin(meta: Meta = Meta.EMPTY) : AbstractPlugin(met
  */
 public val Context.visionManager: VisionManager get() = fetch(VisionManager)
 
-public fun Vision.encodeToString(): String = manager.encodeToString(this)
+public fun Vision.encodeToString(): String =
+    manager?.encodeToString(this) ?: error("Orphan vision could not be encoded")
 
 /**
  * A root vision attached to [VisionManager]

visionforge-core/src/commonMain/kotlin/space/kscience/visionforge/VisionProperties.kt

@@ -1,5 +1,7 @@
 package space.kscience.visionforge
 
+import kotlinx.coroutines.DelicateCoroutinesApi
+import kotlinx.coroutines.GlobalScope
 import kotlinx.coroutines.flow.Flow
 import kotlinx.coroutines.flow.MutableSharedFlow
 import kotlinx.coroutines.flow.SharedFlow
@@ -16,14 +18,14 @@ public interface VisionProperties {
     /**
      * Raw Visions own properties without styles, defaults, etc.
      */
-    public val raw: Meta?
+    public val own: Meta?
 
     public val descriptor: MetaDescriptor?
 
     public fun getValue(
         name: Name,
-        inherit: Boolean,
+        inherit: Boolean? = null,
-        includeStyles: Boolean,
+        includeStyles: Boolean? = null,
     ): Value?
 
     /**
@@ -31,10 +33,10 @@ public interface VisionProperties {
      * @param inherit toggles parent node property lookup. Null means inference from descriptor.
      * @param includeStyles toggles inclusion of properties from styles.
      */
-    public operator fun get(
+    public fun getProperty(
         name: Name,
-        inherit: Boolean,
+        inherit: Boolean? = null,
-        includeStyles: Boolean,
+        includeStyles: Boolean? = null,
     ): Meta
 
     public val changes: Flow<Name>
@@ -48,10 +50,10 @@ public interface VisionProperties {
 
 public interface MutableVisionProperties : VisionProperties {
 
-    override operator fun get(
+    override fun getProperty(
         name: Name,
-        inherit: Boolean,
+        inherit: Boolean?,
-        includeStyles: Boolean,
+        includeStyles: Boolean?,
     ): MutableMeta = VisionPropertiesItem(
         this,
         name,
@@ -60,7 +62,7 @@ public interface MutableVisionProperties : VisionProperties {
     )
 
 
-    public operator fun set(
+    public fun setProperty(
         name: Name,
         node: Meta?,
     )
@@ -84,7 +86,7 @@ private class VisionPropertiesItem(
 
     override val items: Map<NameToken, MutableMeta>
         get() {
-            val metaKeys = properties.raw?.getMeta(nodeName)?.items?.keys ?: emptySet()
+            val metaKeys = properties.own?.getMeta(nodeName)?.items?.keys ?: emptySet()
             val descriptorKeys = descriptor?.children?.map { NameToken(it.key) } ?: emptySet()
             val defaultKeys = default?.get(nodeName)?.items?.keys ?: emptySet()
             val inheritFlag = descriptor?.inherited ?: inherit
@@ -119,7 +121,7 @@ private class VisionPropertiesItem(
     )
 
     override fun setMeta(name: Name, node: Meta?) {
-        properties[nodeName + name] = node
+        properties.setProperty(nodeName + name, node)
     }
 
     override fun toString(): String = Meta.toString(this)
@@ -131,11 +133,10 @@ public abstract class AbstractVisionProperties(
     private val vision: Vision,
 ) : MutableVisionProperties {
     override val descriptor: MetaDescriptor? get() = vision.descriptor
-    protected val default: Meta? get() = descriptor?.defaultNode
 
     protected abstract var properties: MutableMeta?
 
-    override val raw: Meta? get() = properties
+    override val own: Meta? get() = properties
 
     @Synchronized
     protected fun getOrCreateProperties(): MutableMeta {
@@ -149,20 +150,24 @@ public abstract class AbstractVisionProperties(
 
     override fun getValue(
         name: Name,
-        inherit: Boolean,
+        inherit: Boolean?,
-        includeStyles: Boolean,
+        includeStyles: Boolean?,
     ): Value? {
-        raw?.get(name)?.value?.let { return it }
+        val descriptor = descriptor?.get(name)
-        if (includeStyles) {
+        val inheritFlag = inherit ?: descriptor?.inherited ?: false
+        val stylesFlag = includeStyles ?: descriptor?.usesStyles ?: true
+
+        own?.get(name)?.value?.let { return it }
+        if (stylesFlag) {
             vision.getStyleProperty(name)?.value?.let { return it }
         }
-        if (inherit) {
+        if (inheritFlag) {
             vision.parent?.properties?.getValue(name, inherit, includeStyles)?.let { return it }
         }
-        return default?.get(name)?.value
+        return descriptor?.defaultValue
     }
 
-    override fun set(name: Name, node: Meta?) {
+    override fun setProperty(name: Name, node: Meta?) {
         //TODO check old value?
         if (name.isEmpty()) {
             properties = node?.asMutableMeta()
@@ -188,6 +193,7 @@ public abstract class AbstractVisionProperties(
     private val _changes = MutableSharedFlow<Name>(10)
     override val changes: SharedFlow<Name> get() = _changes
 
+    @OptIn(DelicateCoroutinesApi::class)
     override fun invalidate(propertyName: Name) {
         if (propertyName == Vision.STYLE_KEY) {
             vision.styles.asSequence()
@@ -198,85 +204,46 @@ public abstract class AbstractVisionProperties(
                     invalidate(it.key.asName())
                 }
         }
-        vision.manager.context.launch {
+        (vision.manager?.context ?: GlobalScope).launch {
             _changes.emit(propertyName)
         }
     }
 }
 
-public fun VisionProperties.getValue(
-    name: Name,
-    inherit: Boolean? = null,
-    includeStyles: Boolean? = null,
-): Value? {
-    val descriptor = descriptor?.get(name)
-    val inheritFlag = inherit ?: descriptor?.inherited ?: false
-    val stylesFlag = includeStyles ?: descriptor?.usesStyles ?: true
-    return getValue(name, inheritFlag, stylesFlag)
-}
-
 public fun VisionProperties.getValue(
     name: String,
     inherit: Boolean? = null,
     includeStyles: Boolean? = null,
 ): Value? = getValue(name.parseAsName(), inherit, includeStyles)
 
-/**
- * Compute the property based on the provided value descriptor. By default, use Vision own descriptor
- */
-public operator fun VisionProperties.get(
-    name: Name,
-    inherit: Boolean? = null,
-    includeStyles: Boolean? = null,
-): Meta {
-    val descriptor: MetaDescriptor? = descriptor?.get(name)
-    val inheritFlag = inherit ?: descriptor?.inherited ?: false
-    val stylesFlag = includeStyles ?: descriptor?.usesStyles ?: true
-    return get(name, inheritFlag, stylesFlag)
-}
-
-
 /**
  * Get [Vision] property using key as a String
  */
-public operator fun VisionProperties.get(
+public fun VisionProperties.getProperty(
     name: String,
     inherit: Boolean? = null,
     includeStyles: Boolean? = null,
-): Meta = get(name.parseAsName(), inherit, includeStyles)
+): Meta = getProperty(name.parseAsName(), inherit, includeStyles)
-
-
-/**
- * Compute the property based on the provided value descriptor. By default, use Vision own descriptor
- */
-public operator fun MutableVisionProperties.get(
-    name: Name,
-    inherit: Boolean? = null,
-    includeStyles: Boolean? = null,
-): MutableMeta {
-    val descriptor: MetaDescriptor? = descriptor?.get(name)
-    val inheritFlag = inherit ?: descriptor?.inherited ?: false
-    val stylesFlag = includeStyles ?: descriptor?.usesStyles ?: true
-    return get(name, inheritFlag, stylesFlag)
-}
 
 /**
  * The root property node with given inheritance and style flags
+ * @param inherit - inherit properties from the [Vision] parent. If null, infer from descriptor
+ * @param includeStyles - include style information. If null, infer from descriptor
  */
 public fun MutableVisionProperties.root(
     inherit: Boolean? = null,
     includeStyles: Boolean? = null,
-): MutableMeta = get(Name.EMPTY, inherit, includeStyles)
+): MutableMeta = getProperty(Name.EMPTY, inherit, includeStyles)
 
 
 /**
  * Get [Vision] property using key as a String
  */
-public operator fun MutableVisionProperties.get(
+public fun MutableVisionProperties.getProperty(
     name: String,
     inherit: Boolean? = null,
     includeStyles: Boolean? = null,
-): MutableMeta = get(name.parseAsName(), inherit, includeStyles)
+): MutableMeta = getProperty(name.parseAsName(), inherit, includeStyles)
 
 
 public operator fun MutableVisionProperties.set(name: Name, value: Number): Unit =

visionforge-core/src/commonMain/kotlin/space/kscience/visionforge/html/VisionOfHtmlInput.kt

@@ -9,7 +9,7 @@ import space.kscience.dataforge.names.Name
 import space.kscience.visionforge.*
 
 //TODO replace by something
-internal val Vision.mutableProperties get() = properties[Name.EMPTY, false, false]
+internal val Vision.mutableProperties get() = properties.getProperty(Name.EMPTY, false, false)
 
 @Serializable
 public abstract class VisionOfHtmlInput : AbstractVision() {

visionforge-core/src/commonTest/kotlin/space/kscience/visionforge/html/HtmlTagTest.kt

@@ -54,7 +54,7 @@ class HtmlTagTest {
         div {
             h2 { +"Properties" }
             ul {
-                vision.properties.raw?.items?.forEach {
+                vision.properties.own?.items?.forEach {
                     li {
                         a { +it.key.toString() }
                         p { +it.value.toString() }

visionforge-core/src/commonTest/kotlin/space/kscience/visionforge/meta/VisionPropertyTest.kt

@@ -2,7 +2,7 @@ package space.kscience.visionforge.meta
 
 import space.kscience.dataforge.meta.*
 import space.kscience.visionforge.VisionGroup
-import space.kscience.visionforge.get
+import space.kscience.visionforge.getProperty
 import space.kscience.visionforge.getValue
 import space.kscience.visionforge.set
 import kotlin.test.Test
@@ -30,7 +30,7 @@ internal class VisionPropertyTest {
     @Test
     fun testPropertyEdit() {
         val vision = VisionGroup()
-        vision.properties["fff.ddd"].apply {
+        vision.properties.getProperty("fff.ddd").apply {
             value = 2.asValue()
         }
         assertEquals(2, vision.properties.getValue("fff.ddd")?.int)
@@ -40,7 +40,7 @@ internal class VisionPropertyTest {
     @Test
     fun testPropertyUpdate() {
         val vision = VisionGroup()
-        vision.properties["fff"].updateWith(TestScheme) {
+        vision.properties.getProperty("fff").updateWith(TestScheme) {
             ddd = 2
         }
         assertEquals(2, vision.properties.getValue("fff.ddd")?.int)

visionforge-core/src/jsMain/kotlin/space/kscience/visionforge/VisionClient.kt

@@ -115,7 +115,7 @@ public class VisionClient : AbstractPlugin() {
 
                     onopen = {
                         feedbackJob = vision.flowChanges(
-                            feedbackAggregationTime.milliseconds
+                            feedbackAggregationTime.milliseconds,
                         ).onEach { change ->
                             send(visionManager.encodeToString(change))
                         }.launchIn(visionManager.context)

visionforge-fx/build.gradle.kts

@@ -1,12 +1,12 @@
 plugins {
-    id("ru.mipt.npm.gradle.jvm")
+    id("space.kscience.gradle.jvm")
 }
 
 val dataforgeVersion: String by rootProject.extra
 val fxVersion: String by rootProject.extra
 
 kscience{
-    useFx(ru.mipt.npm.gradle.FXModule.CONTROLS, version = fxVersion)
+    useFx(space.kscience.gradle.FXModule.CONTROLS, version = fxVersion)
 }
 
 dependencies {
@@ -15,12 +15,12 @@ dependencies {
     api("org.fxyz3d:fxyz3d:0.5.4") {
         exclude(module = "slf4j-simple")
     }
-    api("org.jetbrains.kotlinx:kotlinx-coroutines-javafx:${ru.mipt.npm.gradle.KScienceVersions.coroutinesVersion}")
+    api("org.jetbrains.kotlinx:kotlinx-coroutines-javafx:${space.kscience.gradle.KScienceVersions.coroutinesVersion}")
     implementation("eu.mihosoft.vrl.jcsg:jcsg:0.5.7") {
         exclude(module = "slf4j-simple")
     }
 }
 
 readme{
-    maturity = ru.mipt.npm.gradle.Maturity.PROTOTYPE
+    maturity = space.kscience.gradle.Maturity.PROTOTYPE
 }

visionforge-fx/src/main/kotlin/space/kscience/visionforge/solid/FX3DPlugin.kt

@@ -16,7 +16,6 @@ import space.kscience.dataforge.context.*
 import space.kscience.dataforge.meta.Meta
 import space.kscience.dataforge.meta.boolean
 import space.kscience.dataforge.misc.Type
-import space.kscience.visionforge.get
 import space.kscience.visionforge.solid.FX3DFactory.Companion.TYPE
 import space.kscience.visionforge.solid.SolidMaterial.Companion.MATERIAL_KEY
 import space.kscience.visionforge.solid.SolidMaterial.Companion.MATERIAL_WIREFRAME_KEY
@@ -77,7 +76,7 @@ public class FX3DPlugin : AbstractPlugin() {
             is PolyLine -> PolyLine3D(
                 obj.points.map { Point3D(it.x, it.y, it.z) },
                 obj.thickness.toFloat(),
-                obj.properties.get(SolidMaterial.MATERIAL_COLOR_KEY).color()
+                obj.properties.getProperty(SolidMaterial.MATERIAL_COLOR_KEY).color()
             ).apply {
                 this.meshView.cullFace = CullFace.FRONT
             }

visionforge-fx/src/main/kotlin/space/kscience/visionforge/solid/VisualObjectFXBinding.kt

@@ -6,7 +6,6 @@ import space.kscience.dataforge.meta.*
 import space.kscience.dataforge.names.Name
 import space.kscience.dataforge.names.startsWith
 import space.kscience.visionforge.Vision
-import space.kscience.visionforge.get
 import space.kscience.visionforge.onPropertyChange
 import tornadofx.*
 
@@ -35,7 +34,7 @@ public class VisualObjectFXBinding(public val fx: FX3DPlugin, public val obj: Vi
     public operator fun get(key: Name): ObjectBinding<Meta?> {
         return bindings.getOrPut(key) {
             object : ObjectBinding<Meta?>() {
-                override fun computeValue(): Meta = obj.properties[key]
+                override fun computeValue(): Meta = obj.properties.getProperty(key)
             }
         }
     }

visionforge-gdml/build.gradle.kts

@@ -1,5 +1,5 @@
 plugins {
-    id("ru.mipt.npm.gradle.mpp")
+    id("space.kscience.gradle.mpp")
 }
 
 kotlin {
@@ -13,5 +13,10 @@ kotlin {
                 api("space.kscience:gdml:0.4.0")
             }
         }
+        jvmTest{
+            dependencies{
+                implementation("ch.qos.logback:logback-classic:1.2.11")
+            }
+        }
     }
 }

visionforge-gdml/src/commonMain/kotlin/space/kscience/visionforge/gdml/markLayers.kt

@@ -1,5 +1,6 @@
 package space.kscience.visionforge.gdml
 
+import space.kscience.dataforge.context.Global
 import space.kscience.dataforge.context.info
 import space.kscience.dataforge.context.logger
 import space.kscience.dataforge.names.Name
@@ -50,7 +51,7 @@ private fun VisionCounterTree.topToBottom(): Sequence<VisionCounterTree> = seque
 }
 
 public fun SolidGroup.markLayers(thresholds: List<Int> = listOf(500, 1000, 20000, 50000)) {
-    val logger = manager.context.logger
+    val logger = manager?.context?.logger ?: Global.logger
     val counterTree = VisionCounterTree(Name.EMPTY, this, hashMapOf())
     val totalCount = counterTree.childrenCount
     if (totalCount > (thresholds.firstOrNull() ?: 0)) {

visionforge-gdml/src/commonTest/kotlin/TestCubes.kt

@@ -26,7 +26,7 @@ class TestCubes {
         val smallBoxPrototype = vision.getPrototype(Name.parse("solids.smallBox")) as? Box
         assertNotNull(smallBoxPrototype)
         assertEquals(30.0, smallBoxPrototype.xSize.toDouble())
-        val smallBoxVision = vision.children["composite-111.smallBox"]?.unref as? Box
+        val smallBoxVision = vision.children["composite-111.smallBox"]?.prototype as? Box
         assertNotNull(smallBoxVision)
         assertEquals(30.0, smallBoxVision.xSize.toDouble())
     }

visionforge-markdown/build.gradle.kts

@@ -1,5 +1,5 @@
 plugins {
-    id("ru.mipt.npm.gradle.mpp")
+    id("space.kscience.gradle.mpp")
 }
 
 val markdownVersion = "0.2.4"

visionforge-plotly/build.gradle.kts

@@ -1,5 +1,5 @@
 plugins {
-    id("ru.mipt.npm.gradle.mpp")
+    id("space.kscience.gradle.mpp")
 }
 
 val plotlyVersion = "0.5.3-dev-1"

visionforge-plotly/src/commonMain/kotlin/space/kscience/visionforge/plotly/VisionOfPlotly.kt

@@ -16,7 +16,7 @@ import space.kscience.visionforge.root
 public class VisionOfPlotly private constructor() : AbstractVision() {
 
     public constructor(plot: Plot) : this() {
-        properties[Name.EMPTY] = plot.meta
+        properties.setProperty(Name.EMPTY, plot.meta)
     }
 
     public val plot: Plot get() = Plot(properties.root().asObservable())

visionforge-server/build.gradle.kts

@@ -1,5 +1,5 @@
 plugins {
-    id("ru.mipt.npm.gradle.jvm")
+    id("space.kscience.gradle.jvm")
 }
 
 val ktorVersion = npmlibs.versions.ktor.get()

visionforge-server/src/main/kotlin/space/kscience/visionforge/server/VisionServer.kt

@@ -92,6 +92,7 @@ public class VisionServer internal constructor(
                 header()
             }
             title(title)
+            consumer.header()
         }
         body {
             //Load the fragment and remember all loaded visions

visionforge-solid/build.gradle.kts

@@ -1,5 +1,5 @@
 plugins {
-    id("ru.mipt.npm.gradle.mpp")
+    id("space.kscience.gradle.mpp")
 }
 
 kscience{
@@ -20,9 +20,14 @@ kotlin {
                 implementation("org.jetbrains.kotlinx:kotlinx-coroutines-test:1.6.4")
             }
         }
+        jvmTest{
+            dependencies{
+                implementation("ch.qos.logback:logback-classic:1.2.11")
+            }
+        }
     }
 }
 
 readme{
-    maturity = ru.mipt.npm.gradle.Maturity.DEVELOPMENT
+    maturity = space.kscience.gradle.Maturity.DEVELOPMENT
 }

visionforge-solid/src/commonMain/kotlin/space/kscience/visionforge/solid/ColorAccessor.kt

@@ -29,7 +29,7 @@ public class ColorAccessor(
 }
 
 public fun Vision.color(): ReadOnlyProperty<Vision, ColorAccessor> = ReadOnlyProperty { _, property ->
-    ColorAccessor(properties.root(), property.name.asName())
+    ColorAccessor(properties.root(true), property.name.asName())
 }
 
 public var ColorAccessor?.string: String?

visionforge-solid/src/commonMain/kotlin/space/kscience/visionforge/solid/Composite.kt

@@ -33,7 +33,7 @@ public inline fun MutableVisionContainer<Solid>.composite(
     }
     val res = Composite(type, children[0], children[1])
 
-    res.properties[Name.EMPTY] = group.properties.raw
+    res.properties.setProperty(Name.EMPTY, group.properties.own)
 
     set(name, res)
     return res
@@ -49,7 +49,7 @@ public fun SolidGroup.smartComposite(
     @VisionBuilder builder: SolidGroup.() -> Unit,
 ): Solid = if (type == CompositeType.GROUP) {
     val group = SolidGroup(builder)
-    if (name == null && group.properties.raw == null) {
+    if (name == null && group.properties.own == null) {
         //append directly to group if no properties are defined
         group.items.forEach { (_, value) ->
             value.parent = null

visionforge-solid/src/commonMain/kotlin/space/kscience/visionforge/solid/Extruded.kt

@@ -107,7 +107,7 @@ public class ExtrudeBuilder(
     }
 
     internal fun build(): Extruded = Extruded(shape, layers).apply {
-        this.properties[Name.EMPTY] = this@ExtrudeBuilder.properties
+        this.properties.setProperty(Name.EMPTY, this@ExtrudeBuilder.properties)
     }
 }
 

visionforge-solid/src/commonMain/kotlin/space/kscience/visionforge/solid/PolyLine.kt

@@ -10,7 +10,7 @@ import space.kscience.visionforge.*
 public class PolyLine(public val points: List<Point3D>) : SolidBase<PolyLine>() {
 
     //var lineType by string()
-    public var thickness: Number by properties[SolidMaterial.MATERIAL_KEY].number { 1.0 }
+    public var thickness: Number by properties.getProperty(SolidMaterial.MATERIAL_KEY).number { 1.0 }
 }
 
 @VisionBuilder

visionforge-solid/src/commonMain/kotlin/space/kscience/visionforge/solid/Solid.kt

@@ -170,7 +170,7 @@ internal fun float(name: Name, default: Number): ReadWriteProperty<Solid, Number
 internal fun point(name: Name, default: Float): ReadWriteProperty<Solid, Point3D?> =
     object : ReadWriteProperty<Solid, Point3D?> {
         override fun getValue(thisRef: Solid, property: KProperty<*>): Point3D? {
-            val item = thisRef.properties.raw?.get(name) ?: return null
+            val item = thisRef.properties.own?.get(name) ?: return null
             return object : Point3D {
                 override val x: Float get() = item[X_KEY]?.float ?: default
                 override val y: Float get() = item[Y_KEY]?.float ?: default
@@ -180,7 +180,7 @@ internal fun point(name: Name, default: Float): ReadWriteProperty<Solid, Point3D
 
         override fun setValue(thisRef: Solid, property: KProperty<*>, value: Point3D?) {
             if (value == null) {
-                thisRef.properties[name] = null
+                thisRef.properties.setProperty(name, null)
             } else {
                 thisRef.properties[name + X_KEY] = value.x
                 thisRef.properties[name + Y_KEY] = value.y

visionforge-solid/src/commonMain/kotlin/space/kscience/visionforge/solid/SolidGroup.kt

@@ -54,7 +54,7 @@ public class SolidGroup : AbstractVisionGroup(), Solid, PrototypeHolder, Mutable
      * If prototype is a ref, then it is unfolded automatically.
      */
     override fun getPrototype(name: Name): Solid? =
-        prototypes?.get(name)?.unref ?: (parent as? PrototypeHolder)?.getPrototype(name)
+        prototypes?.get(name)?.prototype ?: (parent as? PrototypeHolder)?.getPrototype(name)
 
     /**
      * Create or edit prototype node as a group

visionforge-solid/src/commonMain/kotlin/space/kscience/visionforge/solid/SolidMaterial.kt

@@ -99,15 +99,15 @@ public class SolidMaterial : Scheme() {
 }
 
 public val Solid.color: ColorAccessor
-    get() = ColorAccessor(properties.root(), MATERIAL_COLOR_KEY)
+    get() = ColorAccessor(properties.root(true), MATERIAL_COLOR_KEY)
 
 public var Solid.material: SolidMaterial?
-    get() = SolidMaterial.read(properties[MATERIAL_KEY])
+    get() = SolidMaterial.read(properties.getProperty(MATERIAL_KEY))
-    set(value) = properties.set(MATERIAL_KEY, value?.meta)
+    set(value) = properties.setProperty(MATERIAL_KEY, value?.meta)
 
 @VisionBuilder
 public fun Solid.material(builder: SolidMaterial.() -> Unit) {
-    properties[MATERIAL_KEY].updateWith(SolidMaterial, builder)
+    properties.getProperty(MATERIAL_KEY).updateWith(SolidMaterial, builder)
 }
 
 public var Solid.opacity: Number?

visionforge-solid/src/commonMain/kotlin/space/kscience/visionforge/solid/SolidReference.kt

@@ -16,9 +16,10 @@ import space.kscience.visionforge.solid.SolidReference.Companion.REFERENCE_CHILD
  * Get a vision prototype if it is a [SolidReference] or vision itself if it is not.
  * Unref is recursive, so it always returns a non-reference.
  */
-public val Vision.unref: Solid
+public val Vision.prototype: Solid
     get() = when (this) {
-        is SolidReference -> prototype.unref
+        is SolidReference -> prototype.prototype
+        is SolidReferenceChild -> prototype.prototype
         is Solid -> this
         else -> error("This Vision is neither Solid nor SolidReference")
     }
@@ -55,13 +56,13 @@ public class SolidReference(
                     propertiesInternal = value
                 }
 
-            override val raw: Meta? get() = properties
+            override val own: Meta? get() = properties
 
-            override fun get(name: Name, inherit: Boolean, includeStyles: Boolean): MutableMeta {
+            override fun getProperty(name: Name, inherit: Boolean?, includeStyles: Boolean?): MutableMeta {
-                return properties?.getMeta(name) ?: prototype.properties.get(name, inherit, includeStyles)
+                return properties?.getMeta(name) ?: prototype.properties.getProperty(name, inherit, includeStyles)
             }
 
-            override fun getValue(name: Name, inherit: Boolean, includeStyles: Boolean): Value? {
+            override fun getValue(name: Name, inherit: Boolean?, includeStyles: Boolean?): Value? {
                 return properties?.getValue(name) ?: prototype.properties.getValue(name, inherit, includeStyles)
             }
         }
@@ -105,23 +106,23 @@ internal class SolidReferenceChild(
     override val properties: MutableVisionProperties = object : MutableVisionProperties {
         override val descriptor: MetaDescriptor get() = this@SolidReferenceChild.descriptor
 
-        override val raw: MutableMeta by lazy { owner.properties[childToken(childName).asName()] }
+        override val own: MutableMeta by lazy { owner.properties.getProperty(childToken(childName).asName()) }
 
-        override fun get(name: Name, inherit: Boolean, includeStyles: Boolean): MutableMeta =
+        override fun getProperty(name: Name, inherit: Boolean?, includeStyles: Boolean?): MutableMeta =
-            raw.getMeta(name) ?: prototype.properties.get(name, inherit, includeStyles)
+            own.getMeta(name) ?: prototype.properties.getProperty(name, inherit, includeStyles)
 
         override fun getValue(
             name: Name,
-            inherit: Boolean,
+            inherit: Boolean?,
-            includeStyles: Boolean,
+            includeStyles: Boolean?,
-        ): Value? = raw.getValue(name) ?: prototype.properties.getValue(name, inherit, includeStyles)
+        ): Value? = own.getValue(name) ?: prototype.properties.getValue(name, inherit, includeStyles)
 
-        override fun set(name: Name, node: Meta?) {
+        override fun setProperty(name: Name, node: Meta?) {
-            raw.setMeta(name, node)
+            own.setMeta(name, node)
         }
 
         override fun setValue(name: Name, value: Value?) {
-            raw.setValue(name, value)
+            own.setValue(name, value)
         }
 
         override val changes: Flow<Name> get() = owner.properties.changes.filter { it.startsWith(childToken(childName)) }

visionforge-solid/src/commonMain/kotlin/space/kscience/visionforge/solid/transform/RemoveSingleChild.kt

@@ -20,7 +20,7 @@ internal fun Solid.updateFrom(other: Solid): Solid {
     scaleX *= other.scaleX
     scaleY *= other.scaleY
     scaleZ *= other.scaleZ
-    properties[Name.EMPTY] = other.properties.root()
+    properties.setProperty(Name.EMPTY, other.properties.root())
     return this
 }
 

visionforge-solid/src/commonTest/kotlin/space/kscience/visionforge/solid/PropertyTest.kt

@@ -3,7 +3,6 @@ package space.kscience.visionforge.solid
 import kotlinx.coroutines.CompletableDeferred
 import kotlinx.coroutines.ExperimentalCoroutinesApi
 import kotlinx.coroutines.test.runTest
-import kotlinx.coroutines.withTimeout
 import space.kscience.dataforge.meta.int
 import space.kscience.dataforge.meta.string
 import space.kscience.dataforge.names.asName
@@ -26,13 +25,13 @@ class PropertyTest {
 
     @OptIn(ExperimentalCoroutinesApi::class)
     @Test
-    fun testColorUpdate() = runTest {
+    fun testColorUpdate() = runTest(dispatchTimeoutMs = 200) {
         val box = Box(10.0f, 10.0f, 10.0f)
 
         val c = CompletableDeferred<String?>()
 
 
-        box.onPropertyChange {
+        val subscription = box.onPropertyChange(this) {
             if (it == SolidMaterial.MATERIAL_COLOR_KEY) {
                 c.complete(box.color.string)
             }
@@ -42,8 +41,8 @@ class PropertyTest {
             color.set("pink")
         }
 
-        assertEquals("pink", withTimeout(50) { c.await() })
+        assertEquals("pink", c.await())
-
+        subscription.cancel()
     }
 
     @Test

visionforge-solid/src/commonTest/kotlin/space/kscience/visionforge/solid/SerializationTest.kt

@@ -31,7 +31,7 @@ class SerializationTest {
         val string = Solids.encodeToString(cube)
         println(string)
         val newCube = Solids.decodeFromString(string)
-        assertEquals(cube.properties.raw, newCube.properties.raw)
+        assertEquals(cube.properties.own, newCube.properties.own)
     }
 
     @Test
@@ -52,7 +52,7 @@ class SerializationTest {
         val string = Solids.encodeToString(group)
         println(string)
         val reconstructed = Solids.decodeFromString(string) as SolidGroup
-        assertEquals(group.children["cube"]?.properties?.raw, reconstructed.children["cube"]?.properties?.raw)
+        assertEquals(group.children["cube"]?.properties?.own, reconstructed.children["cube"]?.properties?.own)
     }
 
     @Test

visionforge-tables/build.gradle.kts

@@ -1,5 +1,5 @@
 plugins {
-    id("ru.mipt.npm.gradle.mpp")
+    id("space.kscience.gradle.mpp")
 }
 
 val tablesVersion = "0.2.0-dev-3"
@@ -36,5 +36,5 @@ kotlin {
 }
 
 readme{
-    maturity = ru.mipt.npm.gradle.Maturity.PROTOTYPE
+    maturity = space.kscience.gradle.Maturity.PROTOTYPE
 }

visionforge-tables/src/commonTest/kotlin/space/kscience/visionforge/tables/VisionOfTableTest.kt

@@ -17,7 +17,7 @@ internal class VisionOfTableTest {
         val x by ColumnHeader.typed<Value>()
         val y by ColumnHeader.typed<Value>()
 
-        val table = ColumnTable(100) {
+        val table = ColumnTable<Value>(100) {
             x.fill { it.asValue() }
             y.values = x.values.map { it?.double?.pow(2)?.asValue() }
         }

visionforge-threejs/build.gradle.kts

@@ -1,5 +1,5 @@
 plugins {
-    id("ru.mipt.npm.gradle.js")
+    id("space.kscience.gradle.js")
 }
 
 kotlin{

visionforge-threejs/src/main/kotlin/space/kscience/visionforge/solid/three/MeshThreeFactory.kt

@@ -10,7 +10,6 @@ import space.kscience.dataforge.names.asName
 import space.kscience.dataforge.names.plus
 import space.kscience.dataforge.names.startsWith
 import space.kscience.visionforge.VisionBuilder
-import space.kscience.visionforge.get
 import space.kscience.visionforge.onPropertyChange
 import space.kscience.visionforge.set
 import space.kscience.visionforge.solid.Solid
@@ -78,7 +77,7 @@ public abstract class MeshThreeFactory<in T : Solid>(
 @VisionBuilder
 public fun Solid.edges(enabled: Boolean = true, block: SolidMaterial.() -> Unit = {}) {
     properties.set(EDGES_ENABLED_KEY, enabled)
-    SolidMaterial.write(properties[EDGES_MATERIAL_KEY]).apply(block)
+    SolidMaterial.write(properties.getProperty(EDGES_MATERIAL_KEY)).apply(block)
 }
 
 internal fun Mesh.applyProperties(obj: Solid): Mesh = apply {
@@ -94,9 +93,9 @@ internal fun Mesh.applyProperties(obj: Solid): Mesh = apply {
 public fun Mesh.applyEdges(obj: Solid) {
     val edges = children.find { it.name == "@edges" } as? LineSegments
     //inherited edges definition, enabled by default
-    if (obj.properties.get(EDGES_ENABLED_KEY, inherit = true).boolean != false) {
+    if (obj.properties.getProperty(EDGES_ENABLED_KEY, inherit = true).boolean != false) {
         val bufferGeometry = geometry as? BufferGeometry ?: return
-        val material = ThreeMaterials.getLineMaterial(obj.properties[EDGES_MATERIAL_KEY], true)
+        val material = ThreeMaterials.getLineMaterial(obj.properties.getProperty(EDGES_MATERIAL_KEY), true)
         if (edges == null) {
             add(
                 LineSegments(

visionforge-threejs/src/main/kotlin/space/kscience/visionforge/solid/three/ThreeCanvasLabelFactory.kt

@@ -11,7 +11,6 @@ import org.w3c.dom.CanvasRenderingContext2D
 import org.w3c.dom.CanvasTextBaseline
 import org.w3c.dom.HTMLCanvasElement
 import org.w3c.dom.MIDDLE
-import space.kscience.visionforge.get
 import space.kscience.visionforge.solid.SolidLabel
 import space.kscience.visionforge.solid.SolidMaterial
 import space.kscience.visionforge.solid.three.ThreeCanvas.Companion.DO_NOT_HIGHLIGHT_TAG
@@ -27,7 +26,7 @@ public object ThreeCanvasLabelFactory : ThreeFactory<SolidLabel> {
         val canvas = document.createElement("canvas") as HTMLCanvasElement
         val context = canvas.getContext("2d") as CanvasRenderingContext2D
         context.font = "Bold ${obj.fontSize}pt ${obj.fontFamily}"
-        context.fillStyle = obj.properties[SolidMaterial.MATERIAL_COLOR_KEY].value ?: "black"
+        context.fillStyle = obj.properties.getProperty(SolidMaterial.MATERIAL_COLOR_KEY).value ?: "black"
         context.textBaseline = CanvasTextBaseline.MIDDLE
         val metrics = context.measureText(obj.text)
         //canvas.width = metrics.width.toInt()

visionforge-threejs/src/main/kotlin/space/kscience/visionforge/solid/three/ThreeLineFactory.kt

@@ -4,7 +4,6 @@ import info.laht.threekt.core.BufferGeometry
 import info.laht.threekt.core.Object3D
 import info.laht.threekt.math.Color
 import info.laht.threekt.objects.LineSegments
-import space.kscience.visionforge.get
 import space.kscience.visionforge.onPropertyChange
 import space.kscience.visionforge.solid.PolyLine
 import space.kscience.visionforge.solid.SolidMaterial
@@ -25,7 +24,7 @@ public object ThreeLineFactory : ThreeFactory<PolyLine> {
         }
 
         val material = ThreeMaterials.getLineMaterial(
-            obj.properties[SolidMaterial.MATERIAL_KEY],
+            obj.properties.getProperty(SolidMaterial.MATERIAL_KEY),
             false
         )
 

visionforge-threejs/src/main/kotlin/space/kscience/visionforge/solid/three/ThreeMaterials.kt

@@ -10,7 +10,9 @@ import space.kscience.dataforge.meta.*
 import space.kscience.dataforge.names.Name
 import space.kscience.dataforge.names.asName
 import space.kscience.dataforge.names.plus
-import space.kscience.visionforge.*
+import space.kscience.visionforge.Colors
+import space.kscience.visionforge.Vision
+import space.kscience.visionforge.getStyleNodes
 import space.kscience.visionforge.solid.ColorAccessor
 import space.kscience.visionforge.solid.SolidMaterial
 import space.kscience.visionforge.solid.SolidReference
@@ -129,15 +131,15 @@ private var Material.cached: Boolean
     }
 
 public fun Mesh.updateMaterial(vision: Vision) {
-    val ownMaterialMeta = vision.properties.raw?.get(SolidMaterial.MATERIAL_KEY)
+    val ownMaterialMeta = vision.properties.own?.get(SolidMaterial.MATERIAL_KEY)
     if (ownMaterialMeta == null) {
         if (vision is SolidReference && vision.getStyleNodes(SolidMaterial.MATERIAL_KEY).isEmpty()) {
             updateMaterial(vision.prototype)
         } else {
-            material = ThreeMaterials.cacheMaterial(vision.properties[SolidMaterial.MATERIAL_KEY])
+            material = ThreeMaterials.cacheMaterial(vision.properties.getProperty(SolidMaterial.MATERIAL_KEY))
         }
     } else {
-        material = ThreeMaterials.buildMaterial(vision.properties[SolidMaterial.MATERIAL_KEY])
+        material = ThreeMaterials.buildMaterial(vision.properties.getProperty(SolidMaterial.MATERIAL_KEY))
     }
 }
 
@@ -152,15 +154,16 @@ public fun Mesh.updateMaterialProperty(vision: Vision, propertyName: Name) {
     } else {
         when (propertyName) {
             SolidMaterial.MATERIAL_COLOR_KEY -> {
-                material.asDynamic().color = vision.properties[SolidMaterial.MATERIAL_COLOR_KEY].threeColor()
+                material.asDynamic().color = vision.properties.getProperty(SolidMaterial.MATERIAL_COLOR_KEY).threeColor()
                     ?: ThreeMaterials.DEFAULT_COLOR
             }
             SolidMaterial.SPECULAR_COLOR_KEY -> {
-                material.asDynamic().specular = vision.properties[SolidMaterial.SPECULAR_COLOR_KEY].threeColor()
+                material.asDynamic().specular = vision.properties.getProperty(SolidMaterial.SPECULAR_COLOR_KEY).threeColor()
                     ?: ThreeMaterials.DEFAULT_COLOR
             }
             SolidMaterial.MATERIAL_EMISSIVE_COLOR_KEY -> {
-                material.asDynamic().emissive = vision.properties[SolidMaterial.MATERIAL_EMISSIVE_COLOR_KEY].threeColor()
+                material.asDynamic().emissive = vision.properties.getProperty(SolidMaterial.MATERIAL_EMISSIVE_COLOR_KEY)
+                    .threeColor()
                     ?: ThreeMaterials.BLACK_COLOR
             }
             SolidMaterial.MATERIAL_OPACITY_KEY -> {

visionforge-threejs/src/main/kotlin/space/kscience/visionforge/solid/three/ThreePlugin.kt

@@ -1,6 +1,8 @@
 package space.kscience.visionforge.solid.three
 
 import info.laht.threekt.core.Object3D
+import kotlinx.coroutines.flow.launchIn
+import kotlinx.coroutines.flow.onEach
 import org.w3c.dom.Element
 import org.w3c.dom.HTMLElement
 import space.kscience.dataforge.context.*
@@ -9,7 +11,6 @@ import space.kscience.dataforge.meta.update
 import space.kscience.dataforge.names.*
 import space.kscience.visionforge.ElementVisionRenderer
 import space.kscience.visionforge.Vision
-import space.kscience.visionforge.onPropertyChange
 import space.kscience.visionforge.solid.*
 import space.kscience.visionforge.solid.specifications.Canvas3DOptions
 import space.kscience.visionforge.visible
@@ -48,11 +49,11 @@ public class ThreePlugin : AbstractPlugin(), ElementVisionRenderer {
 
     public fun buildObject3D(obj: Solid): Object3D = when (obj) {
         is ThreeJsVision -> obj.render(this)
-        is SolidReferenceGroup -> ThreeReferenceFactory.build(this, obj)
+        is SolidReference -> ThreeReferenceFactory.build(this, obj)
         is SolidGroup -> {
             val group = ThreeGroup()
             obj.items.forEach { (token, child) ->
-                if (child is Solid && token != SolidGroup.PROTOTYPES_TOKEN && child.ignore != true) {
+                if (token != SolidGroup.PROTOTYPES_TOKEN && child.ignore != true) {
                     try {
                         val object3D = buildObject3D(child)
                         group[token] = object3D
@@ -67,7 +68,7 @@ public class ThreePlugin : AbstractPlugin(), ElementVisionRenderer {
                 updatePosition(obj)
                 //obj.onChildrenChange()
 
-                obj.onPropertyChange { name ->
+                obj.properties.changes.onEach { name ->
                     if (
                         name.startsWith(Solid.POSITION_KEY) ||
                         name.startsWith(Solid.ROTATION_KEY) ||
@@ -78,10 +79,10 @@ public class ThreePlugin : AbstractPlugin(), ElementVisionRenderer {
                     } else if (name == Vision.VISIBLE_KEY) {
                         visible = obj.visible ?: true
                     }
-                }
+                }.launchIn(context)
 
-                obj.onStructureChanged(this){ childName ->
+                obj.children.changes.onEach { childName ->
-                    val child = get(childName)
+                    val child = obj.children[childName]
 
                     //removing old object
                     findChild(childName)?.let { oldChild ->
@@ -97,7 +98,7 @@ public class ThreePlugin : AbstractPlugin(), ElementVisionRenderer {
                             logger.error(ex) { "Failed to render $child" }
                         }
                     }
-                }
+                }.launchIn(context)
             }
         }
         is Composite -> compositeFactory.build(this, obj)

visionforge-threejs/src/main/kotlin/space/kscience/visionforge/solid/three/ThreeReferenceFactory.kt

@@ -7,20 +7,21 @@ import space.kscience.dataforge.names.cutFirst
 import space.kscience.dataforge.names.firstOrNull
 import space.kscience.visionforge.onPropertyChange
 import space.kscience.visionforge.solid.Solid
-import space.kscience.visionforge.solid.SolidReferenceGroup
+import space.kscience.visionforge.solid.SolidReference
-import space.kscience.visionforge.solid.SolidReferenceGroup.Companion.REFERENCE_CHILD_PROPERTY_PREFIX
+import space.kscience.visionforge.solid.SolidReference.Companion.REFERENCE_CHILD_PROPERTY_PREFIX
 import kotlin.reflect.KClass
 
-public object ThreeReferenceFactory : ThreeFactory<SolidReferenceGroup> {
+public object ThreeReferenceFactory : ThreeFactory<SolidReference> {
     private val cache = HashMap<Solid, Object3D>()
 
-    override val type: KClass<SolidReferenceGroup> = SolidReferenceGroup::class
+    override val type: KClass<SolidReference> = SolidReference::class
 
     private fun Object3D.replicate(): Object3D {
         return when (this) {
             is Mesh -> Mesh(geometry, material).also {
                 it.applyMatrix4(matrix)
             }
+
             else -> clone(false)
         }.also { obj: Object3D ->
             obj.name = this.name
@@ -30,7 +31,7 @@ public object ThreeReferenceFactory : ThreeFactory<SolidReferenceGroup> {
         }
     }
 
-    override fun build(three: ThreePlugin, obj: SolidReferenceGroup): Object3D {
+    override fun build(three: ThreePlugin, obj: SolidReference): Object3D {
         val template = obj.prototype
         val cachedObject = cache.getOrPut(template) {
             three.buildObject3D(template)
@@ -39,18 +40,20 @@ public object ThreeReferenceFactory : ThreeFactory<SolidReferenceGroup> {
         val object3D: Object3D = cachedObject.replicate()
         object3D.updatePosition(obj)
 
-        if(object3D is Mesh){
+        if (object3D is Mesh) {
             //object3D.material = ThreeMaterials.buildMaterial(obj.getProperty(SolidMaterial.MATERIAL_KEY).node!!)
             object3D.applyProperties(obj)
         }
 
         //TODO apply child properties
 
-        obj.onPropertyChange { name->
+        obj.onPropertyChange { name ->
             if (name.firstOrNull()?.body == REFERENCE_CHILD_PROPERTY_PREFIX) {
-                val childName = name.firstOrNull()?.index?.let(Name::parse) ?: error("Wrong syntax for reference child property: '$name'")
+                val childName = name.firstOrNull()?.index?.let(Name::parse)
+                    ?: error("Wrong syntax for reference child property: '$name'")
                 val propertyName = name.cutFirst()
-                val referenceChild = obj.children[childName] ?: error("Reference child with name '$childName' not found")
+                val referenceChild =
+                    obj.children[childName] ?: error("Reference child with name '$childName' not found")
                 val child = object3D.findChild(childName) ?: error("Object child with name '$childName' not found")
                 child.updateProperty(referenceChild, propertyName)
             } else {

visionforge-threejs/visionforge-threejs-server/build.gradle.kts

@@ -1,5 +1,5 @@
 plugins {
-    id("ru.mipt.npm.gradle.mpp")
+    id("space.kscience.gradle.mpp")
  }
 
 val ktorVersion: String by rootProject.extra