Make ThumbColorActive visible for Switch (#2017)

Change-Id: I49945b654fb131740c6d44028df095bc9cfefeb8

appinventor/components/src/com/google/appinventor/components/runtime/Switch.java

@@ -94,7 +94,7 @@ public final class Switch extends ToggleBase<CompoundButton> {
    *
    * @return  thumb RGB color with alpha
    */
-  @SimpleProperty(category = PropertyCategory.APPEARANCE, userVisible = false)
+  @SimpleProperty(category = PropertyCategory.APPEARANCE)
   public int ThumbColorActive() {
     return thumbColorActive;
   }

appinventor/docs/html/reference/components/userinterface.html

@@ -1169,7 +1169,7 @@ having dark grey components.</li>
   <dt id="Switch.TextColor" class="color"><em>TextColor</em></dt>
   <dd>Specifies the text color of the <code class="highlighter-rouge">Switch</code> as an alpha-red-green-blue
  integer.</dd>
-  <dt id="Switch.ThumbColorActive" class="color do"><em>ThumbColorActive</em></dt>
+  <dt id="Switch.ThumbColorActive" class="color"><em>ThumbColorActive</em></dt>
   <dd>Specifies the <code class="highlighter-rouge">Switch</code>’s thumb color when switch is in the On state.</dd>
   <dt id="Switch.ThumbColorInactive" class="color"><em>ThumbColorInactive</em></dt>
   <dd>Specifies the <code class="highlighter-rouge">Switch</code>’s thumb color when switch is in the Off state.</dd>

appinventor/docs/markdown/reference/components/userinterface.md

@@ -1299,7 +1299,7 @@ A `Spinner` component that displays a dialog with a list of elements. These elem
 : Specifies the text color of the `Switch` as an alpha-red-green-blue
  integer.
 
-{:id="Switch.ThumbColorActive" .color .do} *ThumbColorActive*
+{:id="Switch.ThumbColorActive" .color} *ThumbColorActive*
 : Specifies the `Switch`'s thumb color when switch is in the On state.
 
 {:id="Switch.ThumbColorInactive" .color} *ThumbColorInactive*