+1 The font size is excruciatingly small in my 4K screen. Using Windows 10 and scale & layout size to 175%, it is still too tiny for me. I did configured the QT_SCREEN_SCALE_FACTORS and even set it to 3, but there is not much difference. I really need an option to change the font size. Attaching the screen capture with the capture of Explorer to compare the font size of the two.