There is a tutorial for changing the font. http://forum.toribash.com/showthread.php?t=37035 , although the ehmm... More stupid people may not understand it. I'll write an idiot proof version just incase:

1) First, download a font. www.dafont.com has a lot of nice fonts to download for free.

2) Save it in your computer and change the name to "toribash". If it has .ttf or another extension after it, keep it (so it would be "toribash.ttf").

3) Go to C: \Program Files\Toribash\data\fonts (or wherever your Toribash folder is located) and replace the toribash.ttf file (again, you may not see extensions, depends on the settings your PC has)

4) Restart toribash

I don't know about size and color though, may not be possible.