I have a 14" Full HD display screen. It's probably not qualified to be called a hidpi/retina, but it still is very dense. The problem is that the minimum 2x scaling in Tweak Tools is too much. Ideally I wish I could set this to 1.2-1.3.
Scaling the fonts as someone suggests in these cases, from time to time, is not a viable answer since the interfaces will still be small. It produces a very quirky and ugly UI.
Finally, I sometimes use this laptop with external displays. Those can be as well beyond HD but still, the ratio wouldn't be the same as this laptop. Additionally to the issues above, is there a way to achieve what I want, per monitor basis? I think on Ubuntu/Unity (non-Gnome) you can set the font scaling at least on each monitor separately. Not sure on Gnome.
I think this could be achieved by Xrandr, but would be changes persistent? Has anyone written a GUI tool for that?