click: refresh
a: move mouse left/right
b: shift + move mouse left/right
c: ctrl + move mouse left/right
d: alt + move mouse left/right
color = rgba(a, b, c, d) with mapped domain
a: -1.5995826660582855
b: -2.002784071661507
c: 3.119578333723701
d: -3.000953406705351