Merge pull request #431 from Unity-Technologies/Branch_SmallLayerFix

- Added color to Material reference labels for LayeredLit Shader

ScriptableRenderPipeline/HDRenderPipeline/Material/LayeredLit/Editor/LayeredLitUI.cs

 
         private class StylesLayer
         {
+            public readonly Color[] layerColors = 
+            {
+                Color.white,
+                Color.red,
+                Color.green,
+                Color.blue
+            };
+
             public readonly GUIContent[] layerLabels =
             {
                 new GUIContent("Main layer"),
 
             public StylesLayer()
             {
-                layerLabelColors[0].normal.textColor = Color.white;
-                layerLabelColors[1].normal.textColor = Color.red;
-                layerLabelColors[2].normal.textColor = Color.green;
-                layerLabelColors[3].normal.textColor = Color.blue;
+                layerLabelColors[0].normal.textColor = layerColors[0];
+                layerLabelColors[1].normal.textColor = layerColors[1];
+                layerLabelColors[2].normal.textColor = layerColors[2];
+                layerLabelColors[3].normal.textColor = layerColors[3];
             }
         }
 
             bool layersChanged = false;
             Material material = m_MaterialEditor.target as Material;
 
+            Color originalContentColor = GUI.contentColor;
+
+                GUI.contentColor = styles.layerColors[layerIndex];
+
-                    SynchronizeLayerProperties(material, m_MaterialLayers, layerIndex, false);
+                    SynchronizeLayerProperties(material, m_MaterialLayers, layerIndex, true);
+
+                GUI.contentColor = originalContentColor;
 
                 GUILayout.BeginHorizontal();
                 {