Macbook Pro using the default screen scaling from 3024x1964 down to 1512x982. The game seems to be detecting this okay; it’s the only option in the resolution settings.
I've improved support for different screen ratios. They are far from ideal or perfect but they should make the game playable. I still have a few adjustments left to make, but I should have it ready by tomorrow night. Support SHOULD range from 4:3 to 21:9.