Anti-Buddhabrot Rainbow 🌈

https://www.dwitter.net/d/18247

for(i=1e3,Z=540;--i;x.fillRect(t?800-(C=C*--T?C*C-S*S+(S=2*C*S+B,A):A=r(S=B=r(T=1e3)*4-2)*6-3)*Z:0,t?S*Z+Z:0,w=t?(x.fillStyle=`hsl(${Z*(A*A+B*B)**.5},99%,${99-T/13}%,.5`,1):2e3,w))r=Math.random