Keyboard Shortcuts Description:
- The cloverleaf (campground) symbol is the shortcut for the command key.
- The hollow up arrow is the shortcut for the shift key.
- The carat (^) is the shortcut for the control key.
- The "split path" is the shortcut for the option key.
The UP arrow is used for shift because shift usually makes something UPPER case. The "split path" as I called it is used for the alt/option key because it looks like a symbol you'd see for taking an alternatate/optional route on a trail. The carat has always been the control symbol in Unix and Linux command lines over the years.