Apologies if this is already a feature/topic. Couldn't find anything.
Idea: Format the actual colour when typing in hex/rgb colour codes in CSS files.
Why: Streamline. Won't have to click to browser and refresh to see my colour.
Problem: Might be a little bit hard to contrast the background for some colours.
For example. In my CSS file I might have
rgb(0,0,0).... the 0,0,0 would be formatted black
rgb(125,174,255)... the 125,174,255 would be formatted a sky blue colour
Same thing can be done for hex values.
Anyway just an idea.