At the risk of sounding a bit controversial, I really don't have a problem if Cheetah doesn't run on computers made older than 3-5 years ago. Fact of the matter is, a lot of professional 3D modeling software in many cases costs as much as a new Mac every year as a subscription, thanks to the new (dreaded) software-as-a-service economy these days. Cheetah provides pretty much everything that a casual and professional-ish user could hope for in a very reasonably priced package. I'd hate to see it held back by not taking the fullest advantage of modern systems. I think you're striking a good, if perhaps a little conservative, balance to keep everyone happy.
Also, the dark mode concept looks amazing!
