Qt Android Deploy: Multiple "Root" Paths

When building for android, a json file is generated, which is then read by androiddeployqt. That file contains an entry "qml-root-path" with the project path.

The problem here is, as far as I can see, only for that path qml files are scanned for imports (The "Scanning for QML imports" step). However, in my project, I use a library which imports the graphical effects in one of it's files. These files are abviously not scanned by default.

It would be nice if I was able to add additional paths to the pro file, where qml files should be scanned for imports. I tried QML_IMPORT_PATH, but that does not work.