Social button colours

Liking this theme so far, looks amazing. Just trying to customise it and set it up, but im hitting one “bug”.

Im on the social buttons page of the theme options. I’ve set up the facebook button fine. but when I try and change the colour, I click the colour box… and what I assume is meant to be a colour picker “appears” underneath except the page doesnt scroll down to reveal it, so its totally covered up except for a tiny strip. If i click at it a few times i can glitch it and grab the colour picker and move it around, and manage to move it to blue/green/etc… but the actual “chosen colour” box only changes shade, not colour. (As in it gets darker/lighter shades of grey but doesnt actually change colour. Its always white/black/or shade of grey)

I assume im meant to be able to make these icons different colours?