Color chooser presets

[NathanSweet]

Often the same colors are needed multiple times and copy/pasting hex values can be tedious.

[erikari]

I propose we add two new elements to the slot color view, at the bottom of it: (or a palette view but that may be excessive?)

1. Color history which shows the list of any new color recently set for quick reuse
2. Custom palettes structured like in these examples below (and saved locally as jsons so people in the same team can exchange them) And the option to create, load, and save a palette collection. To save a new preset the common way to do it is to click on an unset square to save it. Right click deletes the color preset in the square.

Example from Procreate:

Example from Coolorus:

[FabianoIlCapo]

Any feature on this front will surely be helpful.

+1 from me!

[NathanSweet]

+1 https://esotericsoftware.com/forum/d/25901