Adjust alpha value

[i-am-the-slime]

Is there a combinator or another way to adjust the alpha value of a given (HSLA) colour?

[sharkdp]

I don't think there is (haven't worked on this project for a while). But Color is just

data Color = HSLA Hue Number Number Number

with the last Number being the alpha value. So you should be able to modify it "by hand".

[paulyoung]

It seems that the constructor isn't exported so we can't pattern match on it.

[JordanMartinez]

I'm not sure the constructor should be exported. Plus, that would be a breaking change and I'd rather not have to fix that, too.

So, perhaps a function like Either's either that exposes the values wrapped by Color could be added in a PR as a non-breaking change?