fix gdots color change

Author: BruceSherwood

lib/glow/graph.js

@@ -1210,7 +1210,7 @@
                 if (this.__graph.fast) this.options.color = col
                 if (this.__activated) {
                 	if (this.__graph.fast) {
-            	    	if (this.__realtype == 'points') this.options[ftype].fillColor = this.options.color
+            	    	if (this.__realtype == 'points') this.options[this.__realtype].fillColor = this.options.color
             	    	else this.options.fillColor = this.options.color
                         this.__graph.__changed = true
                 	} else {