I updated to the latest VCL UI Pack, 10.4.8.0, and now my THtmlTreeView looks horrible at Windows display scaling greater than 100%.
THtmlTreeView 1.5.3.3
Here it is at 150%:
Here it is at 200%
What Delphi version do you use?
Ok, the Delphi underlying TTreeView VCL clearly has a different behavior before and after 10.2.
We have fixed this taking in account Delphi versions and applying different behavior before and after Delphi 10.2.