Multiple Color Palette Presets

[pexeixv]

Goal:
Provide quick access to preset colors for painting.

Requirements:

• Display 5-10 preset colors below the color picker.
• Clicking a preset selects that color.
• Include a "custom color" option for free choice.

Notes:
Speeds up painting and improves workflow.

[Avenger11764]

Hello @pexeixv. please assign me this task. I want to contribute.