check styles

.github/workflows/package-windows.yml

@@ -53,6 +53,7 @@ jobs:
           python -m pip install --upgrade pip certifi
           pip install -r ${{ matrix.requirements }}
           pip install pyinstaller --no-binary pyinstaller
+          python -c "from PySide6.QtWidgets import QStyleFactory;print(QStyleFactory.keys())"
       - name: build binary
         run: |
           python setup.py ${{ matrix.command }}