The choice is up to you; by default, the App Store should give you plenty of options in terms of custom icons you can use. The third category of launchers supported by this shortcut are ...

There are no workarounds, no hacks: MacStories Shortcuts Icons can be installed using a native feature of Shortcuts supported in iOS and iPadOS 14. Your shortcuts will keep the colors you assigned ...

[default: 48] --platforms For which platforms should the icons be resized. Comma-separated list. Possible values: ios, android [default: "ios,android"] --config A file with custom thumbnail sizes ...