Alticns is a command line tool to manage alternative icons for Mac apps easily.

• Change Mac app icons with one command
• Store .icns files

You can install alticns from Homebrew.

$ brew install Fus1onDev/tap/alticns

Apply the alternate icon and store the image file in the .alticns directory.

$ alticns set /Applications/Firefox.app Downloads/new-icon.icns

It uses the path of the target .app file and the path of the .icns file as arguments.

With the --remove (-r) flag, the original file is removed at the same time.

To use stored icons, you must add --stored (-s) flag.

$ alticns set -s /Applications/Firefox.app

Also, --all (-a) flag instead of the arguments will apply all saved icons to the apps.

$ alticns set -a

Restore the app icon to the original one.

$ alticns reset /Applications/Firefox.app

The --all (-a) flag will do this for all apps, and the --remove (-r) flag will remove stored icons.

$ alticns reset -ar

Shows a tree of stored icons.

It may contain icons that have been saved but not applied.

$ alticns list
Applications
  Firefox
  Microsoft Excel
  Microsoft PowerPoint
  Microsoft Outlook
  Microsoft Word
  AppCleaner
  Microsoft OneNote

MIT