Hi, this is a known issue, and it's in our to-do list.
The graphical API we use for Style Editor, Lister and other elements (Qt 4.x) doesn't support 4k screens.
We must migrate it to a recent version, similar to Max 2017/2018 which uses Qt 5.x. But this is a complex process, and requires many changes in the code and our compiling workflow.
Apologies for any inconveniences. I hope we can do the migration soon.