STORM-1253 WIP Fixed track colors in the day cycle editor.

- Selected key now visually differs from others.
- Disabled triangle becomes more transparent.

indra/llui/llmultislider.cpp

@@ -511,7 +511,7 @@ void LLMultiSlider::draw()
 				mIt->second.mTop + extra_triangle_height,
 				mIt->second.mLeft + mIt->second.getWidth() / 2, 
 				mIt->second.mBottom - extra_triangle_height,
-				mTriangleColor.get(), TRUE);
+				mTriangleColor.get() % opacity, TRUE);
 		}
 	}
 	else if (!thumb_imagep)

indra/newview/skins/default/colors.xml

@@ -500,22 +500,22 @@
 	  reference="DkGray2" />
     <color
      name="MultiSliderDisabledThumbColor"
-     reference="Unused?" />
+     reference="Black" />
     <color
      name="MultiSliderThumbCenterColor"
-     reference="Unused?" />
+     reference="White" />
     <color
      name="MultiSliderThumbCenterSelectedColor"
-     reference="Unused?" />
+     reference="Green" />
     <color
      name="MultiSliderThumbOutlineColor"
      reference="Unused?" />
     <color
      name="MultiSliderTrackColor"
-     reference="Unused?" />
+     reference="LtGray" />
     <color
      name="MultiSliderTriangleColor"
-     reference="Unused?" />
+     reference="Yellow" />
   <!--
     <color
       name="NameTagBackground"