This issue is copied from the original feature request by @BarbzYHOOL geany, see https://github.com/geany/geany/issues/1669:
When you write CSS, html or maybe other markup languages, you often need to type colors. A very nice feature would be to have the same thing we got in modern browsers (like firefox) when you inspect an element :
next to the RGB/RGBA color code there is a big dot representing the color (very useful) if you click on it, you have a color picker to change it and it changes the color code accordingly
Actually we are forced to open a color picker just to see what is the color code, so I open Gimp which is heavy and it's quite unpractical
Thank you :)