@Patrick H. Lauke (redux) - Ha! I do something similar when I make outline version of pixel fonts: replace the square brick with a circle brick, place squares all around the circles, then erase the circles.
@goatmeal yup, exactly what drew me to this. while working on
it, i actually used false colours to not get confused, and it was a
super strong gradient.
I'm not sure about your definition of abugida, as an abuigida is a type of writing system that typically consists of a consonant followed by any vowel mark(s).