Request: a way to set colors with one parameter instead of 3 or 4

It would be great if colors could be set with a single parameter, such as #rrggbbaa hex like html eg. #48a499ff or rgba(255,255,255,255).

I’m sure this is something that’s deeply ingrained into how TD is built, but if there was a way to toggle it to use a single field, that’d be great.