I don't have any immediate plans to add the scripts for the rest of the in-game blocks, but it's not too hard if someone wants to do that. It's just very tedious and repetetive.

All you have to do is look in the script that runs the check for which block they are standing on and copy/paste one of the "if/Then" sections and rename the block in question, for any desired block to be used with the Paint Map.