"CraftBoy is a complete overhaul skin designed to take you way, way back, to a simpler time when instead of portable Playstations and Nintendos, we had a big bulky box that only displayed graphics in 4 shades of green, and the quality of a game was decided by it's level of fun, not it's graphics."
If you want discernible wool colours, maybe just try the Color pack
The bulk of this was made by chibifs and Chocolatekirby in this thread, while BigBlueDude converted it to Grayscale - I've been updating it since Beta!
one thing I'd suggest here is making the note box have a comp-like keyboard or maybe even piano keys on top to replace the record player in the jukebox and at the same time make the note box look better
btw, I tried installing the pack with the HDpatcher like MisturSrs said and it fixed it for me as well
also, I'll take this opportunity to request a new craftboy skin or an overhaul of the current one, perhaps something more cartoonish or Frenden-styled but in the lovely Gameboy green scale obviously.
The Jukebox is 2 textures - one for the top, and one for all other sides. The Music Box uses only the Jukebox's side textures, so every side will look the same.
There are alternate textures included in the pack, but I just use the default ones.
I think the FIRE TEX! boxes on terrain.png (near top-right) only work when modded - dunno where it gets the textures from in a normal game. I could put some fire textures in them blocks and see what happens.
Perhaps I should try the HD Patcher and see what it does - doesn't it overwrite your default textures though?
The current CraftBoy skin matches the zombies. Still, could have a little more to it. I do love Frendens...