Robomongo (Robo-3T) high DPI settings for Linux and Mac

My monitor is high DPI, and when starting robomongo, everything was a bit too small.

Downloading an unzipping gave me this tree

robo3t-1.1.1-linux-x86_64-c93c6b0 $ tree
.
├── bin
│   ├── qt.conf
│   └── robo3t
├── lib
│   ├── [...]
├── CHANGELOG
├── COPYRIGHT
├── DESCRIPTION
└── LICENSE

Which gave a hint this application is using Qt. Looking in the git repo, I found that they are using Qt5, and they support HIGH_DPI mode.

Normal mode

Before starting the binary, I can set the environment variable ‘QT_SCALE_FACTOR=2’ to be able to get a usable user interface.

$ QT_SCALE_FACTOR=2 ./bin/robo3t

Scaled DPI