Using keyboard only, I find it frustrating to switch between flag and clear modes (with F) and would prefer to hold down a modifier key while hitting Enter.
This PR implements it using ALT, but I'd be happy with any alternative if ALT has cross-platform issues.
We had modifier keys in early prototypes of the game, but I think they clashed with things like accessibility shortcuts. We'll take another look at it though
Using keyboard only, I find it frustrating to switch between flag and clear modes (with F) and would prefer to hold down a modifier key while hitting Enter.
This PR implements it using ALT, but I'd be happy with any alternative if ALT has cross-platform issues.