completed canvas manipulation

Author: mjdude

08 - Fun with HTML5 Canvas/index-START.html

@@ -15,6 +15,8 @@
   ctx.lineJoin = 'round';
   ctx.lineCap = 'round';
   ctx.lineWidth = 100;
+  // clours overlay, google globalCompositeOperation 
+  // ctx.globalCompositeOperation = 'multiply';
   let isDrawing = false;
   let lastX =0;
   let lastY =0;