There's just the plugin's forum topic currently.
Dear R0J0hound , your canvas plugin is both one of the most promising and yet occluded extensions in Construct 2. The possibilities that it opens, game-play and aesthetically speaking, are tremendous, although hidden behind its complexity that lay in understanding what it's actually capable of doing and how to do it.
I really wish there was a way to officially implementing the canvas plugin within construct, with detailed manual entry, tutorials and examples
Have you thought the possibility for the above? Does Ashley have in mind the official implementation of the canvas plugin?