Smart Compact Mode in MixColors, MagicSquire, MagicPicker, MagicRefs in Adobe Photoshop and Illustrator
Tip#82: Use Compact Mode to speed up your creative work

Frequent colors palette in MagicPicker + MixColors
Panels Tips & Tricks. Tip#11: Frequent colors in MagicPicker (+MixColors)
MixColors panel with swatch color groups in Photoshop
Tip#50: MixColors 2 and new swatch groups