Add labels to history buttons

[lightonflux]

If you are taking a many colours that are similar but different, it might be hard to (re)find the correct colour within the history.

Adding labels (#hex representation) would help "power" users to refind a colour from history with fewer clicks.

Because this feature would only help power users and increase the size of the history (in the GUI) quite a lot, it would be best to make this optional. Or enable it automatically, if the app detects that colours are too close to each other.

[lightonflux]

Another option to enable this feature could be based on the window width.

[FineFindus]

Thanks, for the suggestions, this has already been added, in the newest unreleased version, it will show a tooltip (the hex color) when hovering over the color. The new version should hopefully be released soon, I'm only waiting for some translations.