COPY COLORS ON THE WATCH
[Starting v9.37] You can long press palette icons to reuse last set color. Use this trick to set multiple items to the exact same color on the watch!

The app will show a tip about long pressing the palette icon, whenever you set an item to almost the same color as the last one (this tip is shown only 3 times).

Tip: you don’t have to change a color to store it for copying. Just tap on the color that you want to copy, then tap and hold the color-symbol where you want to copy it to.

 

It is demoed in this video → https://youtu.be/u5Lk1ZaBGFU&t=164