Piet + ascii-piet, 14 bytes (10×2=20 codels)
sSsSKNMTFVrFff
Try Piet online!Try Piet online!
(Previous record: 30 codels / ascii-piet bytes)
In ascii-piet, a
represents a dark blue cell, and u
is a light magenta cell. (x
and symbols and digits do not exist.) This program has only one dark color but four different light colors, so I had to rotate the hue so that the resulting ascii-piet representation contains neither a
nor u
.
The program itself is pretty simple:
4 dup dup * * 1 + outC