My work just gave us laptops with 4K screens and Windows 10. I’ve noticed that on my System, Sublime has some weird thresholds. Up to font_size 19 things scale normally. When pushed between 20-22, I see no change, when I hit 23 things jump very large (or maybe finally scale). This is kind of a an annoying problem. I was using no font scaling on this system, so fonts were set to 100%.
I noticed this as I was seeing some strange behaviors in popup font sizes. Then when I tried to resize my font, I saw no change until I hit size 23, then my popup text all sized proportionally again opposed to the really large headers and really tiny paragraph text.