At first the theme of the tiers was going to be video games and Ban would grow more detailed as it went from 1-bit to 8 to 16 to 32 ( with its overly detailed sprites )... but the things got complicated because after that because then video games went almost entirely to 3D
I considered making some faux 3D pixel icons, but it would be just too much work for this, so I had to give up on it