Bring up to date with master

Author: ecridge

lib/addons/p5.dom.js

@@ -1146,7 +1146,7 @@
     var self = this;
 
     if (val instanceof p5.Color)
-      val = 'rgba(' + val.rgba[0] + ',' + val.rgba[1] + ',' + val.rgba[2] + ',' + val.rgba[3]/255 + ')'
+      val = 'rgba(' + val.levels[0] + ',' + val.levels[1] + ',' + val.levels[2] + ',' + val.levels[3]/255 + ')'
 
     if (typeof val === 'undefined') {
       if (prop.indexOf(':') === -1) {