How to reduce Qt UI scale/Opentrack Window Size
I was having an issue with the Opentrack window being too big on my screen. The "Ok" button at the bottom of the window was out of reach so I was not able to save mapping changes. Here's how to reduce the scale and size of that window. I think my laptop having a 14" screen caused this.
!Attention! This solution will reduce the scale of all Qt user interfaces on your device, but not many programs use Qt, so this will not be a problem for most. Here is a list of some programs that have a Qt interface:
Utilities / Tools
VirtualBox (Oracle’s virtual machine manager)
qBittorrent
KeePassXC
Notepad++ (with certain plugins)
Calibre (eBook manager)
OpenSCAD
Anki (flashcard program)
MuseScore (music notation)
Developer / Power-User Software
Qt Creator (the IDE itself — obviously 😂)
OBS Studio (older versions)
Kdenlive (video editor)
FreeCAD
Blender add-ons using Qt (rare, but happens)
Godot Engine (some tools use Qt for launchers)
Sim / Flight Tools
OpenTrack (ummm)
FaceTrackNoIR (older versions)
Some DCS or X-Plane plugins / config tools
Some joystick or telemetry interfaces built with Qt