Texture Browser

[jmickle66666666]

A UI needs to be built for browsing and selecting textures. This can be built independently of the actual interaction with the map and tool as a whole.

I was imagining a floating div that opens over the main canvas, just like a new window (but it does not need to move or anything, though that might be a nice feature)

Currently the main canvas doesn't like to be resized, so adding into the view is kind of out of the question, unless that can be fixed.