HTML style input (ie #FF0000 for red) would be neat to have together with ability to copy and paste
I'd argue it's less important to implement than other announced features though
I do agree that it is a bit difficult to really fine-tune the color by manipulating RGB sliders and an integer input field would be useful.
For me, it is more difficult that the RGB range is 0-160 instead of full 8bit (0-255) and if you already have the RGB color, then one has to do some basic math to rescale it to the lower range.
Again, not a big issue at all, there are much more important things Scawen needs to focus on at the moment.