The official DoxyWizard for macOS is built against Qt 4. It does not support retina displays nor Mojave's dark mode. This fork contains the scripts I use to compile it myself.
cd addon/doxywizard
./build_qt5_app.sh
This will create DoxyWizard.app
in /Volumes/WORKSPACE/template_app
.
See the original repository. I only wrote the buildscript above.