I've decided to implement the Amiga "cursor flicker" trick. This will come in very handy when trying to get a lem facing a certain direction in Classic Mode; since this mode aims to closely reproduce the OG experience, this is pretty much a necessary part of it.
Clear physics shows it best - note that the directional arrow only faces left when the cursor is flickering to the right of a group of lemmings:
Commit b432a5bbe implements this feature
And whilst we're on the subject, here's a new trick for you - since lem recolouring for athletes is kept active in Classic Mode, assign a Floater or some other permaskill to one of the lemmings in a group, and this lemming will now visually stand out from the crowd! From there, it's very easy to see which direction that lemming is facing in, and whereabouts they are!