Tests to see if two colors are equal.
color
colors= color1 color2 &optional tolerance => bool
color1
A color specification.
color2
tolerance
A tolerance level within which color1 and color2 may vary. The default value is 0.001s0 .
0.001s0
bool
t if the two colors are equal within the given tolerance, nil otherwise.
t
nil
Return t if the two colors are equal to the given tolerance.
ensure-<command> convert-color
