Fixed color group saving in Thang editor.

app/schemas/subscriptions/editor.coffee

@@ -56,3 +56,6 @@ module.exports =
 
   'editor:thang-type-kind-changed': c.object {required: ['kind']},
     kind: {type: 'string'}
+
+  'editor:thang-type-color-groups-changed': c.object {required: ['colorGroups']},
+    colorGroups: {type: 'object'}

app/views/editor/thang/ThangTypeColorsTabView.coffee

@@ -136,6 +136,7 @@ module.exports = class ThangTypeColorsTabView extends CocoView
 
   onColorGroupsChanged: =>
     @thangType.set('colorGroups', @colorGroups.data)
+    Backbone.Mediator.publish 'editor:thang-type-color-groups-changed', colorGroups: @colorGroups.data
 
   onColorGroupSelected: (e, selected) =>
     @$el.find('#color-group-settings').toggle selected.length > 0

app/views/editor/thang/ThangTypeEditView.coffee

@@ -44,6 +44,7 @@ module.exports = class ThangTypeEditView extends RootView
     'keyup .play-with-level-input': 'onPlayLevelKeyUp'
 
   subscriptions:
+    'editor:thang-type-color-groups-changed': 'onColorGroupsChanged'
     'editor:save-new-version': 'saveNewThangType'
 
   # init / render
@@ -102,6 +103,11 @@ module.exports = class ThangTypeEditView extends RootView
   onComponentsChanged: (components) =>
     @thangType.set 'components', components
 
+  onColorGroupsChanged: (e) ->
+    @temporarilyIgnoringChanges = true
+    @treema.set 'colorGroups', e.colorGroups
+    @temporarilyIgnoringChanges = false
+
   makeDot: (color) ->
     circle = new createjs.Shape()
     circle.graphics.beginFill(color).beginStroke('black').drawCircle(0, 0, 5)
@@ -383,6 +389,7 @@ module.exports = class ThangTypeEditView extends RootView
     @lastKind = data.kind
 
   pushChangesToPreview: =>
+    return if @temporarilyIgnoringChanges
     # TODO: This doesn't delete old Treema keys you deleted
     for key, value of @treema.data
       @thangType.set(key, value)