@mos_8502 I wonder how much of this behavior in GTK and QT came from them being developed at a time when I think the general attitude everywhere was 'if you need things on screen to be bigger, get a bigger display' (at least in the Windows world, I think). My somewhat vague memory is we spent a long time with (maximum) achievable CRT resolution basically fixed, little to no GUI scaling for various reasons (eg bitmaps everywhere), and varying sized CRTs.