Limiting myself.
I am going to limit myself to 160 x 144 pixels, and those pixels can be white, black, or one of two shades of gray.

A quickly drawn head to get into the mood, the blue = transparant.
Comments
sf17k
22. Apr 2010 · 23:38 UTC
That sounds kinda monotonous. Can’t it be white, black, and two complementary colors?
InaVegt
23. Apr 2010 · 03:42 UTC
Good idea! I will be using two as of yet undefined colors instead of the shades of gray.