Not sure if this is the best place for this, but as the manual points to Airtime project files ...
The manual (http://en.flossmanuals.net/airtime/integration-with-mixxx/) links to some skins for Mixxx. Our issue is that those skins are locked to a resolution (1280x1024) that our aged and/or small monitors don't do. The old monitor does 1024x768, the newer one does 1440x900. What would it take to get some skins with variable resolution?
Mixxx doesn't support variable skins (e.g. one size fits all) because each button is a fixed pixel size. So a small skin on a large monitor would just be wasting space in the interface.