I tidied up the CSS around the #canvasContainer so that it doesn't overlap the toolbars and hides any excess canvas (handy for my canvas pan implementation https://github.com/theelectricwiz/draw/commit/5d93828d4819bcb743b31b94dadeac7f55be6a23). I also made it so it tries to keep the color picker on screen when you show it by holding button 0 down and so the picker is position when you click on the picker button.
I tidied up the CSS around the #canvasContainer so that it doesn't overlap the toolbars and hides any excess canvas (handy for my canvas pan implementation https://github.com/theelectricwiz/draw/commit/5d93828d4819bcb743b31b94dadeac7f55be6a23). I also made it so it tries to keep the color picker on screen when you show it by holding button 0 down and so the picker is position when you click on the picker button.