I use color a lot on the pathfinding pages. Since I've converted them to canvas I should look at gradients and patterns to make it easier to distinguish for color-blind folk.

I implemented this but because I had previously changed the design to use lightness and outlines to distinguish most data, there wasn't as much left for patterns as I expected. I added patterns to the forest:

forest-before-texture.png

forest-after-texture.png

and I also added textures to the intro diagram:

intro-before-texture.png

intro-after-texture.png