doc

Signed-off-by: Chris Malley <[email protected]>
phetsims · Oct 16, 2018 · 4e79b47 · 4e79b47
1 parent 0302f47
commit 4e79b47
Showing 1 changed file with 1 addition and 0 deletions.
diff --git a/js/common/view/GraphContentsToggleButton.js b/js/common/view/GraphContentsToggleButton.js
@@ -23,6 +23,7 @@ define( require => {
 
       super( graphContentsVisibleProperty, options );
 
+      // change the button color to emphasize when the graph contents are hidden
       graphContentsVisibleProperty.link( visible => {
         this.setBaseColor( visible ? 'white' : PhetColorScheme.BUTTON_YELLOW );
       } );