i3, I only set
Xft.dpi: 144
This forces fonts to scale, but what about bitmaps? They will scale if the increased text size causes the widget to grow (and also affect parent widgets in this manner). But pure icons aren't scaled - indeed, on your screenshot, there are some icons that are noticeably smaller than they should be proportional to the text.
Thanks!
I really appreciate you taking the time.
Obviously the web browsers are a big requirement.
...but I've had trouble with the defaults for almost everything I've tried: xterm, libreoffice, browsers. Under KDE the menus are too small by default. Under non-Gnome-or-KDE window managers or desktop environments almost everything is rendered too small.
The chances are that I can't just install an application with `apt-get` and have it do something sensible by default without a lot of fiddling and customisation.