Fixed vertical size for demos

demo/playground/src/jsMain/kotlin/playgroundMain.kt

@@ -1,10 +1,10 @@
 import space.kscience.dataforge.misc.DFExperimental
 import space.kscience.visionforge.plotly.PlotlyPlugin
+import space.kscience.visionforge.ring.ThreeWithControlsPlugin
 import space.kscience.visionforge.runVisionClient
-import space.kscience.visionforge.solid.three.ThreePlugin
 
 @DFExperimental
 fun main() = runVisionClient {
     plugin(PlotlyPlugin)
-    plugin(ThreePlugin)
+    plugin(ThreeWithControlsPlugin)
 }

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

@@ -95,6 +95,7 @@ public val ThreeCanvasWithControls: FunctionalComponent<ThreeCanvasWithControlsP
 
         flexRow {
             css {
+                height = 100.pct
                 flex(1.0, 1.0, FlexBasis.auto)
                 flexWrap = FlexWrap.wrap
                 alignItems = Align.stretch

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

@@ -131,7 +131,7 @@ public class ThreePlugin : AbstractPlugin(), ElementVisionRenderer {
     override fun rateVision(vision: Vision): Int =
         if (vision is Solid) ElementVisionRenderer.DEFAULT_RATING else ElementVisionRenderer.ZERO_RATING
 
-    fun renderSolid(
+    internal fun renderSolid(
         element: Element,
         vision: Solid,
     ): ThreeCanvas = getOrCreateCanvas(element).apply {