Is it possible to include a second app icon to be used on macOS versions prior to 11.0 Big Sur? I'm updating my app icon to match the new style used in Big Sur, and I'm wondering if it's possible to include an alternate icon for use on older macOS versions so that the app will still look at home next to their built-in app icons? App & System Services Core OS macOS 7 0 1.5k Jul ’20