Custom icon sets for MacOS Apps.

Warning: Disabling System Integrity Protection (SIP) is required to use skins on pre-installed Apps

If you do not need to change skins for system Apps, skip the following step

Warning: You will not have access to these instructions while disabling SIP. Write them down, or open on another device.

1. Restart your Mac.  > Restart...
2. Hold ⌘R during boot. (This opens Recovery Mode)
3. In the toolbar: Utilities > Terminal
4. run csrutil disable
5. Restart your Mac.  > Restart...

1. Copy the icon to clipboard:
   • Right click > Get Info... > Preview; select and copy (⌘C)
   • You CAN NOT simply copy the file
   • You CAN NOT copy the icon from the top left of the Get Info pane, you must copy from the preview tab within the pane
2. Paste the icon in the application:
   • Finder > Applications > Your Target > Right Click > Get Info... > Preview; select top left thumbnail and paste (⌘V)

Troubleshooting

If the new icon looks like a peice of paper inscribed with "ICNS", it was copied incorrectly. Workaround: Open the image file in the Preview App, select all, then copy.

1. If your new icons are not displayed in the dock, open terminal:

killAll Dock

2. Open each app, and the icon should be updated.

Warning: You will not have access to these instructions while enabling SIP. Write them down, or open on another device.

1. Restart your Mac.  > Restart...
2. Hold ⌘R during boot. (This opens Recovery Mode)
3. In the toolbar: Utilities > Terminal
4. run csrutil enable
5. Restart your Mac.  > Restart...