[REG 3.5.0 -> 3.5.1] Wizard don't look native anymore

1. Start Creator with empty settings.
2. Select "File" -> "New File or Project..." from the menu.
3. Select "Application" -> "Qt Widgets Application" and click "Choose..."
   You'll see a wizard that doesn't look native at all:
   

These wizards should look like native wizards. This worked correctly in 3.5.0: