[soegaard]

You can use preview to edit the icon files.

For each icon size: Use the smart lasso to make a circular selection, then rotate left 2 times.

[spongeb00b]

That works for the folder icon, but not the icon in the Finder sidebar

[jonhohle]

What are you talking about? It’s easy[0]! /s

0 - https://www.reddit.com/r/mac/comments/seig87/how_to_make_cus...