diff --git a/demo/gdml/build.gradle.kts b/demo/gdml/build.gradle.kts
index f1593d84..8f8c0f9f 100644
--- a/demo/gdml/build.gradle.kts
+++ b/demo/gdml/build.gradle.kts
@@ -1,6 +1,5 @@
 import scientifik.DependencyConfiguration
 import scientifik.FXModule
-import scientifik.useFx
 
 plugins {
     id("scientifik.mpp")
@@ -37,7 +36,7 @@ kotlin {
 }
 
 application {
-    mainClassName = "hep.dataforge.vis.spatial.gdml.demo.GDMLDemoAppKt"
+    mainClassName = "hep.dataforge.vision.gdml.demo.GDMLDemoAppKt"
 }
 
 val convertGdmlToJson by tasks.creating(JavaExec::class) {
diff --git a/demo/gdml/src/commonMain/kotlin/hep/dataforge/vision/solid/gdml/demo/cubes.kt b/demo/gdml/src/commonMain/kotlin/hep/dataforge/vision/gdml/demo/cubes.kt
similarity index 97%
rename from demo/gdml/src/commonMain/kotlin/hep/dataforge/vision/solid/gdml/demo/cubes.kt
rename to demo/gdml/src/commonMain/kotlin/hep/dataforge/vision/gdml/demo/cubes.kt
index d682d25d..e0666f2a 100644
--- a/demo/gdml/src/commonMain/kotlin/hep/dataforge/vision/solid/gdml/demo/cubes.kt
+++ b/demo/gdml/src/commonMain/kotlin/hep/dataforge/vision/gdml/demo/cubes.kt
@@ -1,4 +1,4 @@
-package hep.dataforge.vision.solid.gdml.demo
+package hep.dataforge.vision.gdml.demo
 
 import scientifik.gdml.*
 
diff --git a/demo/gdml/src/commonTest/kotlin/hep/dataforge/vision/solid/gdml/GDMLVisualTest.kt b/demo/gdml/src/commonTest/kotlin/hep/dataforge/vision/gdml/GDMLVisualTest.kt
similarity index 87%
rename from demo/gdml/src/commonTest/kotlin/hep/dataforge/vision/solid/gdml/GDMLVisualTest.kt
rename to demo/gdml/src/commonTest/kotlin/hep/dataforge/vision/gdml/GDMLVisualTest.kt
index 3b2679b3..ed3710e3 100644
--- a/demo/gdml/src/commonTest/kotlin/hep/dataforge/vision/solid/gdml/GDMLVisualTest.kt
+++ b/demo/gdml/src/commonTest/kotlin/hep/dataforge/vision/gdml/GDMLVisualTest.kt
@@ -1,11 +1,11 @@
-package hep.dataforge.vision.solid.gdml
+package hep.dataforge.vision.gdml
 
 import hep.dataforge.meta.setItem
 import hep.dataforge.meta.string
 import hep.dataforge.names.toName
 import hep.dataforge.values.asValue
+import hep.dataforge.vision.gdml.demo.cubes
 import hep.dataforge.vision.solid.SolidMaterial
-import hep.dataforge.vision.solid.gdml.demo.cubes
 import kotlin.test.Test
 import kotlin.test.assertEquals
 
diff --git a/demo/gdml/src/jsMain/kotlin/hep/dataforge/vision/solid/gdml/demo/GDMLAppComponent.kt b/demo/gdml/src/jsMain/kotlin/hep/dataforge/vision/gdml/demo/GDMLAppComponent.kt
similarity index 98%
rename from demo/gdml/src/jsMain/kotlin/hep/dataforge/vision/solid/gdml/demo/GDMLAppComponent.kt
rename to demo/gdml/src/jsMain/kotlin/hep/dataforge/vision/gdml/demo/GDMLAppComponent.kt
index 0fdb7e37..ee788190 100644
--- a/demo/gdml/src/jsMain/kotlin/hep/dataforge/vision/solid/gdml/demo/GDMLAppComponent.kt
+++ b/demo/gdml/src/jsMain/kotlin/hep/dataforge/vision/gdml/demo/GDMLAppComponent.kt
@@ -1,4 +1,4 @@
-package hep.dataforge.vision.solid.gdml.demo
+package hep.dataforge.vision.gdml.demo
 
 import hep.dataforge.context.Context
 import hep.dataforge.names.Name
@@ -6,13 +6,13 @@ import hep.dataforge.names.isEmpty
 import hep.dataforge.vision.Vision
 import hep.dataforge.vision.VisionGroup
 import hep.dataforge.vision.bootstrap.*
+import hep.dataforge.vision.gdml.toVision
 import hep.dataforge.vision.react.component
 import hep.dataforge.vision.react.configEditor
 import hep.dataforge.vision.react.flexColumn
 import hep.dataforge.vision.react.state
 import hep.dataforge.vision.solid.Solid
 import hep.dataforge.vision.solid.SolidGroup
-import hep.dataforge.vision.solid.gdml.toVision
 import hep.dataforge.vision.solid.specifications.Camera
 import hep.dataforge.vision.solid.specifications.Canvas3DOptions
 import hep.dataforge.vision.solid.three.ThreeCanvas
diff --git a/demo/gdml/src/jsMain/kotlin/hep/dataforge/vision/solid/gdml/demo/GDMLDemoApp.kt b/demo/gdml/src/jsMain/kotlin/hep/dataforge/vision/gdml/demo/GDMLDemoApp.kt
similarity index 92%
rename from demo/gdml/src/jsMain/kotlin/hep/dataforge/vision/solid/gdml/demo/GDMLDemoApp.kt
rename to demo/gdml/src/jsMain/kotlin/hep/dataforge/vision/gdml/demo/GDMLDemoApp.kt
index cd8d38f1..56b9fecd 100644
--- a/demo/gdml/src/jsMain/kotlin/hep/dataforge/vision/solid/gdml/demo/GDMLDemoApp.kt
+++ b/demo/gdml/src/jsMain/kotlin/hep/dataforge/vision/gdml/demo/GDMLDemoApp.kt
@@ -1,12 +1,12 @@
-package hep.dataforge.vision.solid.gdml.demo
+package hep.dataforge.vision.gdml.demo
 
 import hep.dataforge.context.Global
 import hep.dataforge.js.Application
 import hep.dataforge.js.startApplication
+import hep.dataforge.vision.gdml.GDMLTransformer
+import hep.dataforge.vision.gdml.LUnit
+import hep.dataforge.vision.gdml.toVision
 import hep.dataforge.vision.solid.SolidMaterial.Companion.MATERIAL_OPACITY_KEY
-import hep.dataforge.vision.solid.gdml.GDMLTransformer
-import hep.dataforge.vision.solid.gdml.LUnit
-import hep.dataforge.vision.solid.gdml.toVision
 import kotlinx.css.*
 import react.child
 import react.dom.render
diff --git a/demo/gdml/src/jsMain/kotlin/hep/dataforge/vision/solid/gdml/demo/fileDrop.kt b/demo/gdml/src/jsMain/kotlin/hep/dataforge/vision/gdml/demo/fileDrop.kt
similarity index 93%
rename from demo/gdml/src/jsMain/kotlin/hep/dataforge/vision/solid/gdml/demo/fileDrop.kt
rename to demo/gdml/src/jsMain/kotlin/hep/dataforge/vision/gdml/demo/fileDrop.kt
index 0d4a7de9..4bf47c85 100644
--- a/demo/gdml/src/jsMain/kotlin/hep/dataforge/vision/solid/gdml/demo/fileDrop.kt
+++ b/demo/gdml/src/jsMain/kotlin/hep/dataforge/vision/gdml/demo/fileDrop.kt
@@ -1,4 +1,4 @@
-package hep.dataforge.vision.solid.gdml.demo
+package hep.dataforge.vision.gdml.demo
 
 import drop.FileDrop
 import kotlinx.css.*
diff --git a/demo/gdml/src/jvmMain/kotlin/hep/dataforge/vision/solid/gdml/demo/GDMLDemoApp.kt b/demo/gdml/src/jvmMain/kotlin/hep/dataforge/vision/gdml/demo/GDMLDemoApp.kt
similarity index 96%
rename from demo/gdml/src/jvmMain/kotlin/hep/dataforge/vision/solid/gdml/demo/GDMLDemoApp.kt
rename to demo/gdml/src/jvmMain/kotlin/hep/dataforge/vision/gdml/demo/GDMLDemoApp.kt
index 831eae28..35b00615 100644
--- a/demo/gdml/src/jvmMain/kotlin/hep/dataforge/vision/solid/gdml/demo/GDMLDemoApp.kt
+++ b/demo/gdml/src/jvmMain/kotlin/hep/dataforge/vision/gdml/demo/GDMLDemoApp.kt
@@ -1,13 +1,13 @@
-package hep.dataforge.vision.solid.gdml.demo
+package hep.dataforge.vision.gdml.demo
 
 import hep.dataforge.context.Global
 import hep.dataforge.vision.editor.VisualObjectEditorFragment
 import hep.dataforge.vision.editor.VisualObjectTreeFragment
+import hep.dataforge.vision.gdml.toVision
 import hep.dataforge.vision.solid.SolidManager
 import hep.dataforge.vision.solid.SolidMaterial
 import hep.dataforge.vision.solid.fx.FX3DPlugin
 import hep.dataforge.vision.solid.fx.FXCanvas3D
-import hep.dataforge.vision.solid.gdml.toVision
 import javafx.geometry.Orientation
 import javafx.scene.Parent
 import javafx.stage.FileChooser
diff --git a/demo/gdml/src/jvmMain/kotlin/hep/dataforge/vision/solid/gdml/demo/readFile.kt b/demo/gdml/src/jvmMain/kotlin/hep/dataforge/vision/gdml/demo/readFile.kt
similarity index 89%
rename from demo/gdml/src/jvmMain/kotlin/hep/dataforge/vision/solid/gdml/demo/readFile.kt
rename to demo/gdml/src/jvmMain/kotlin/hep/dataforge/vision/gdml/demo/readFile.kt
index 4fc2e535..c0fcd2ed 100644
--- a/demo/gdml/src/jvmMain/kotlin/hep/dataforge/vision/solid/gdml/demo/readFile.kt
+++ b/demo/gdml/src/jvmMain/kotlin/hep/dataforge/vision/gdml/demo/readFile.kt
@@ -1,14 +1,14 @@
-package hep.dataforge.vision.solid.gdml.demo
+package hep.dataforge.vision.gdml.demo
 
 import hep.dataforge.meta.DFExperimental
 import hep.dataforge.meta.setItem
 import hep.dataforge.values.asValue
+import hep.dataforge.vision.gdml.LUnit
+import hep.dataforge.vision.gdml.readFile
+import hep.dataforge.vision.gdml.toVision
 import hep.dataforge.vision.solid.SolidGroup
 import hep.dataforge.vision.solid.SolidManager
 import hep.dataforge.vision.solid.SolidMaterial
-import hep.dataforge.vision.solid.gdml.LUnit
-import hep.dataforge.vision.solid.gdml.readFile
-import hep.dataforge.vision.solid.gdml.toVision
 import scientifik.gdml.GDML
 import java.io.File
 import java.util.zip.GZIPInputStream
diff --git a/demo/gdml/src/jvmMain/kotlin/hep/dataforge/vision/solid/gdml/demo/saveToJson.kt b/demo/gdml/src/jvmMain/kotlin/hep/dataforge/vision/gdml/demo/saveToJson.kt
similarity index 81%
rename from demo/gdml/src/jvmMain/kotlin/hep/dataforge/vision/solid/gdml/demo/saveToJson.kt
rename to demo/gdml/src/jvmMain/kotlin/hep/dataforge/vision/gdml/demo/saveToJson.kt
index 092cb00a..5c0c09c6 100644
--- a/demo/gdml/src/jvmMain/kotlin/hep/dataforge/vision/solid/gdml/demo/saveToJson.kt
+++ b/demo/gdml/src/jvmMain/kotlin/hep/dataforge/vision/gdml/demo/saveToJson.kt
@@ -1,8 +1,8 @@
-package hep.dataforge.vision.solid.gdml.demo
+package hep.dataforge.vision.gdml.demo
 
-import hep.dataforge.vision.solid.gdml.LUnit
-import hep.dataforge.vision.solid.gdml.readFile
-import hep.dataforge.vision.solid.gdml.toVision
+import hep.dataforge.vision.gdml.LUnit
+import hep.dataforge.vision.gdml.readFile
+import hep.dataforge.vision.gdml.toVision
 import hep.dataforge.vision.solid.stringify
 import scientifik.gdml.GDML
 import java.io.File
diff --git a/demo/spatial-showcase/src/jvmMain/kotlin/hep/dataforge/vision/solid/demo/FXDemoApp.kt b/demo/spatial-showcase/src/jvmMain/kotlin/hep/dataforge/vision/solid/demo/FXDemoApp.kt
index a0c05d29..5b337ad9 100644
--- a/demo/spatial-showcase/src/jvmMain/kotlin/hep/dataforge/vision/solid/demo/FXDemoApp.kt
+++ b/demo/spatial-showcase/src/jvmMain/kotlin/hep/dataforge/vision/solid/demo/FXDemoApp.kt
@@ -1,6 +1,6 @@
 package hep.dataforge.vision.solid.demo
 
-import hep.dataforge.vision.solid.gdml.gdml
+import hep.dataforge.vision.gdml.gdml
 import javafx.stage.Stage
 import tornadofx.*
 import java.nio.file.NoSuchFileException
diff --git a/visionforge-core/src/commonMain/kotlin/hep/dataforge/vision/AbstractVision.kt b/visionforge-core/src/commonMain/kotlin/hep/dataforge/vision/AbstractVision.kt
index 0d25b35f..a025a87a 100644
--- a/visionforge-core/src/commonMain/kotlin/hep/dataforge/vision/AbstractVision.kt
+++ b/visionforge-core/src/commonMain/kotlin/hep/dataforge/vision/AbstractVision.kt
@@ -73,13 +73,13 @@ abstract class AbstractVision : Vision {
         return if (inherit) {
             sequence {
                 yield(properties?.get(name))
-                yield(getStyleItem(name))
+                yieldAll(getStyleItems(name))
                 yield(parent?.getProperty(name, inherit))
             }.merge()
         } else {
             sequence {
                 yield(properties?.get(name))
-                yield(getStyleItem(name))
+                yieldAll(getStyleItems(name))
             }.merge()
         }
     }
diff --git a/visionforge-core/src/commonMain/kotlin/hep/dataforge/vision/StyleSheet.kt b/visionforge-core/src/commonMain/kotlin/hep/dataforge/vision/StyleSheet.kt
index 6fcc330d..4dfb28d1 100644
--- a/visionforge-core/src/commonMain/kotlin/hep/dataforge/vision/StyleSheet.kt
+++ b/visionforge-core/src/commonMain/kotlin/hep/dataforge/vision/StyleSheet.kt
@@ -106,8 +106,15 @@ fun Vision.useStyle(name: String) {
     styles = styles + name
 }
 
-fun Vision.getStyleItem(name: Name): MetaItem<*>? {
-    return styles.asSequence().map { resolveStyle(it) }.map { it[name] }.firstOrNull()
+/**
+ * Resolve an item in all style layers
+ */
+fun Vision.getStyleItems(name: Name): Sequence<MetaItem<*>> {
+    return styles.asSequence().map {
+        resolveStyle(it)
+    }.map {
+        it[name]
+    }.filterNotNull()
 }
 
 /**
diff --git a/visionforge-gdml/src/commonMain/kotlin/hep/dataforge/vision/solid/gdml/GDMLTransformer.kt b/visionforge-gdml/src/commonMain/kotlin/hep/dataforge/vision/gdml/GDMLTransformer.kt
similarity index 98%
rename from visionforge-gdml/src/commonMain/kotlin/hep/dataforge/vision/solid/gdml/GDMLTransformer.kt
rename to visionforge-gdml/src/commonMain/kotlin/hep/dataforge/vision/gdml/GDMLTransformer.kt
index b576daf4..b7019f69 100644
--- a/visionforge-gdml/src/commonMain/kotlin/hep/dataforge/vision/solid/gdml/GDMLTransformer.kt
+++ b/visionforge-gdml/src/commonMain/kotlin/hep/dataforge/vision/gdml/GDMLTransformer.kt
@@ -1,4 +1,4 @@
-package hep.dataforge.vision.solid.gdml
+package hep.dataforge.vision.gdml
 
 import hep.dataforge.meta.Meta
 import hep.dataforge.meta.MetaBuilder
diff --git a/visionforge-gdml/src/commonMain/kotlin/hep/dataforge/vision/solid/gdml/GdmlVision.kt b/visionforge-gdml/src/commonMain/kotlin/hep/dataforge/vision/gdml/GdmlVision.kt
similarity index 99%
rename from visionforge-gdml/src/commonMain/kotlin/hep/dataforge/vision/solid/gdml/GdmlVision.kt
rename to visionforge-gdml/src/commonMain/kotlin/hep/dataforge/vision/gdml/GdmlVision.kt
index 105f545c..29efa338 100644
--- a/visionforge-gdml/src/commonMain/kotlin/hep/dataforge/vision/solid/gdml/GdmlVision.kt
+++ b/visionforge-gdml/src/commonMain/kotlin/hep/dataforge/vision/gdml/GdmlVision.kt
@@ -1,4 +1,4 @@
-package hep.dataforge.vision.solid.gdml
+package hep.dataforge.vision.gdml
 
 
 import hep.dataforge.names.Name
diff --git a/visionforge-gdml/src/commonMain/kotlin/hep/dataforge/vision/solid/gdml/units.kt b/visionforge-gdml/src/commonMain/kotlin/hep/dataforge/vision/gdml/units.kt
similarity index 97%
rename from visionforge-gdml/src/commonMain/kotlin/hep/dataforge/vision/solid/gdml/units.kt
rename to visionforge-gdml/src/commonMain/kotlin/hep/dataforge/vision/gdml/units.kt
index a12aca34..3e5783ef 100644
--- a/visionforge-gdml/src/commonMain/kotlin/hep/dataforge/vision/solid/gdml/units.kt
+++ b/visionforge-gdml/src/commonMain/kotlin/hep/dataforge/vision/gdml/units.kt
@@ -1,4 +1,4 @@
-package hep.dataforge.vision.solid.gdml
+package hep.dataforge.vision.gdml
 
 import scientifik.gdml.AUnit
 import scientifik.gdml.GDMLPosition
diff --git a/visionforge-gdml/src/jvmMain/kotlin/hep/dataforge/vision/solid/gdml/visualGDMLJvm.kt b/visionforge-gdml/src/jvmMain/kotlin/hep/dataforge/vision/gdml/visualGDMLJvm.kt
similarity index 92%
rename from visionforge-gdml/src/jvmMain/kotlin/hep/dataforge/vision/solid/gdml/visualGDMLJvm.kt
rename to visionforge-gdml/src/jvmMain/kotlin/hep/dataforge/vision/gdml/visualGDMLJvm.kt
index 92fb50d4..0d47ea7a 100644
--- a/visionforge-gdml/src/jvmMain/kotlin/hep/dataforge/vision/solid/gdml/visualGDMLJvm.kt
+++ b/visionforge-gdml/src/jvmMain/kotlin/hep/dataforge/vision/gdml/visualGDMLJvm.kt
@@ -1,4 +1,4 @@
-package hep.dataforge.vision.solid.gdml
+package hep.dataforge.vision.gdml
 
 import hep.dataforge.vision.solid.SolidGroup
 import nl.adaptivity.xmlutil.StAXReader
diff --git a/visionforge-gdml/src/jvmTest/kotlin/hep/dataforge/vision/solid/gdml/TestConvertor.kt b/visionforge-gdml/src/jvmTest/kotlin/hep/dataforge/vision/gdml/TestConvertor.kt
similarity index 96%
rename from visionforge-gdml/src/jvmTest/kotlin/hep/dataforge/vision/solid/gdml/TestConvertor.kt
rename to visionforge-gdml/src/jvmTest/kotlin/hep/dataforge/vision/gdml/TestConvertor.kt
index 6fe347e3..d932ab0e 100644
--- a/visionforge-gdml/src/jvmTest/kotlin/hep/dataforge/vision/solid/gdml/TestConvertor.kt
+++ b/visionforge-gdml/src/jvmTest/kotlin/hep/dataforge/vision/gdml/TestConvertor.kt
@@ -1,4 +1,4 @@
-package hep.dataforge.vision.solid.gdml
+package hep.dataforge.vision.gdml
 
 import hep.dataforge.vision.solid.stringify
 import nl.adaptivity.xmlutil.StAXReader
diff --git a/visionforge-solid/src/commonMain/kotlin/hep/dataforge/vision/solid/Proxy.kt b/visionforge-solid/src/commonMain/kotlin/hep/dataforge/vision/solid/Proxy.kt
index 8059e796..463434cc 100644
--- a/visionforge-solid/src/commonMain/kotlin/hep/dataforge/vision/solid/Proxy.kt
+++ b/visionforge-solid/src/commonMain/kotlin/hep/dataforge/vision/solid/Proxy.kt
@@ -48,14 +48,14 @@ class Proxy private constructor(
         return if (inherit) {
             sequence {
                 yield(properties?.get(name))
-                yield(getStyleItem(name))
+                yieldAll(getStyleItems(name))
                 yield(prototype.getItem(name))
                 yield(parent?.getProperty(name, inherit))
             }.merge()
         } else {
             sequence {
                 yield(properties?.get(name))
-                yield(getStyleItem(name))
+                yieldAll(getStyleItems(name))
                 yield(prototype.getProperty(name, false))
             }.merge()
         }
@@ -126,14 +126,14 @@ class Proxy private constructor(
             return if (inherit) {
                 sequence {
                     yield(properties?.get(name))
-                    yield(getStyleItem(name))
+                    yieldAll(getStyleItems(name))
                     yield(prototype.getItem(name))
                     yield(parent?.getProperty(name, inherit))
                 }.merge()
             } else {
                 sequence {
                     yield(properties?.get(name))
-                    yield(getStyleItem(name))
+                    yieldAll(getStyleItems(name))
                     yield(prototype.getProperty(name, false))
                 }.merge()
             }
diff --git a/visionforge-solid/src/jsMain/kotlin/hep/dataforge/vision/solid/three/ThreeMaterials.kt b/visionforge-solid/src/jsMain/kotlin/hep/dataforge/vision/solid/three/ThreeMaterials.kt
index f8110d73..a2da8611 100644
--- a/visionforge-solid/src/jsMain/kotlin/hep/dataforge/vision/solid/three/ThreeMaterials.kt
+++ b/visionforge-solid/src/jsMain/kotlin/hep/dataforge/vision/solid/three/ThreeMaterials.kt
@@ -44,7 +44,7 @@ object ThreeMaterials {
     }
 
     fun getMaterial(vision3D: Vision): Material {
-        val meta = vision3D.getItem(SolidMaterial.MATERIAL_KEY).node ?: return ThreeMaterials.DEFAULT
+        val meta = vision3D.getItem(SolidMaterial.MATERIAL_KEY).node ?: return DEFAULT
         return if (meta[SolidMaterial.SPECULAR_COLOR_KEY] != null) {
             MeshPhongMaterial().apply {
                 color = meta[SolidMaterial.COLOR_KEY]?.getColor() ?: DEFAULT_COLOR