When using Beta 32 and displaying PDFs in the editor, the font displays very weirdly. The problem only occurs when High DPI mode is enabled. I’ve attached a screenshot showing the problem–as you can see, the titlebar above the PDF displays fine, but the text of the PDF itself is hard to read.
Edited to add: additionally, the problem seems to be tied to multiple monitors. The difficult text appears on my lower-resolution monitor (1920x1080), but appears fine on my main display (2736x1824).