pixels = W:1024 H:1024

x = from -1 to 1 W
y = from -1 to 1 H

ax = 0.144
ay = 0.0
ar = 0.3
bx = 0.2
by = 0.0
br = 0.1

frag = ar/length2(x - ax, y - ay) - br/length2(x - bx, y - by)

k = if (frag > 1, 1, 0)

r = k
g = frag
b = r
