I recently ported a mod that allows mapping in cave dimensions, and noticed that a lot of the Undergarden blocks don't have map colors that match them particularly well. A few examples can be seen in this screenshot. Other particularly notable examples are that Frozen Deepturf shows up grass-green instead of white, and leaves (regardless of color) typically display as green.

I'm aware this is well outside the bounds of intended use, so this is partially a bug report and partially a feature request. Could the colors be updated to allow better mapping, please?