I would like to have the color filter (as a property like in CC, or maybe a behavior) in a next release (if it fits in the actual todo list without much harm).
Color filter is one of the things HTML5 canvas doesn't support. It can be worked around with a sort of setpixel method, but then it starts using lots of memory and it's very slow to change filters, so I'd prefer to stick to the native features of canvas.
WebGL would support this, and very interestingly I've seen Google just released a "JebGL" java fallback for WebGL in IE, so that may be a possibility...