Logically, if we are going to stick PC users with symbols they have never seen that seem to have no correlation to the keys on their keyboard, we should at least use more standard symbols.
So your “command” key is now called the “GUI” key by the USB HID protocol. We could show it as ⌘ “point of interest” (U+2318) when the platform is mac but use ❖ “black diamond minus white x” (U+2756) otherwise.
For alt we could your symbol for option ⌥ (U+2325) only when on mac but use the proper ISO/IEC 9995 symbol for alt otherwise which is ⎇ (U+2387) for non-mac.
But for Control we really really should use the ISO/IEC 9995 symbol for it which is the helm ⎈ (U+2388) for all platforms. Not only is it the standard for all keyboards but has also been used on some mac keyboards and some PC keyboards, although few.
