If someone out there with a color calculator has a ton of free time for some reason, here's a project for you: figure out how to manually draw text with the the Pxl-On command. Then, separate the code for each character (including lowercase letters, preferably) into its own program so anyone can call said program to draw text of any color for his/her game.
In case anyone is wondering, this is the only known way to work around the background color of graphscreen text on TI-84+CSE and CE calculators. See the TextColor( page for a more detailed description. I would do this myself, but I really don't have time. I may post one hand-drawn character later as an example, however.