woot, programming contest. That took long enough. I may do something, but I doubt it.

First item: yeah, I've seen that, though I forget for what tokens.
About Mario: that's because program names use raw characters, but the homescreen uses tokens. So your single-byte letter becomes a one-byte token.

nice. what caused the decrease, anyway?

speed-typing! I only know the more common ones (I think, the others might be known unconsciously ).
For better or for worse, I find myself saying menu key followed by the correct number-letter rather than the menu name followed by the command name. (second-math-right-4 rather than test-xor or second-test-logic-xor)

What's worse and what I did until I figured out how to use GDB's is to use the window as is. That code got messy quickly.
A pixel Y,X (such as used with Pxl-On) becomes Xmin+^X*X,Ymax-^Y*Y (yes I'm using carets for deltas) and conversion back is even uglier, with rounding involved. *shudder*
But then I learned about GDB's, and I became happier.
Also, nice code, Galandros

Yeah, it can definitely be annoying at first, though, as the wikipedia article states, there are advantages to it, namely that different-length parts of the data can all be accessed at the same address and extending a number is pretty easy (just add 0's), though the second point is a bit less important for z80 programming.

I would think so. Those, I think, are actually single-byte tokens, which means that they don't have the same form as the others (e.g. something like 42 'B' versus BB73 (don't know what it is, but you get the point))

true, though it's more troublesome for greyscale, as DJ said. OR followed by XOR? Hmm... never realized that. Will use.
Yeah, the command freeze is a good idea. And as always, keep up the good work!