A macOS Big Sur + iOS 14 icon theme including core macOS apps and select third party apps.
Apple has significantly changed the method of replacing system icons for Big Sur. These icons have been tested and work on Big Sur developer beta 1 and 2, but I can not guarantee that they will work on all future versions. As future versions are released, I will do my best to provide instructions on making them work should things change.
Replacing system icons on Catalina is quite easy, and replacing third party icons on both OSs are very easy. Instructions are included in the package.
If you are on Big Sur replacing the icons is slightly more difficult, but I have included a simple script to run that will prompt you for information it needs and take care of replacing the icons.
Replacing icons on iOS is done via Shortcuts.
These icons are for personal use as icon replacements only and may not be shared, redistributed, or reposted anywhere.
I am not responsible for any damage done to your system using or installing these icons.
If you have any questions, you can find me on Twitter @gavmn or email me at firstname.lastname@example.org