WowAce

Currently the text styles have the traditional color circle, shade slider & the new hex number selector.

Would it be possible to add the transparency slider?

My specific use case is that I want to completely hide the charge count, so that I can overlay a weakaura which shows partial charge gain on an ability instead. Being able to make it transparent would let me hide it.

But I also think it would be useful for people who (e.g.) want to see the hotkey, but not have it be very visually impactful.

Hopefully this would be a straightforward addition considering many addons are using a color picker that includes transparency now.