What is the lock indicator on Karabiner-Elements and Karabiner-EventViewer icon

A lock indicator is shown on Karabiner-Elements and Karabiner-EventViewer icon since macOS 11.0 (Big Sur).

These indicators show that these files are protected so that they cannot be deleted from Finder.

lock@2x.png

Why these files are protected

This protection is intended to prevent incomplete uninstallation.

Karabiner-Elements is a system-wide software, and files are installed in appropriate locations besides the Applications folder.

Therefore, if you just put the application icon in Trash like a normal app uninstallation, some files will be left behind.

The file protection forces to use the built-in uninstaller and remove installed files properly at the uninstallation.