Used the greensock AS3 library forever and love GSAP! I'm working on a side project that involves dragdrop and drawing on canvas. So I have been trying many different JS libraries and I haven't been able to find a single animation platform that does both draw and animate. I really like the GSAP JS draggable functions and have been investigating paper.js. Has anyone had luck with multiple layered canvases and leveraging both paper.js and GSAP.   thanks drew