<@U3TDY9EAU> If this works, you should go back to ...

# tornadofx

[edvin]

@lutz If this works, you should go back to just using App(TestView::class, Styles::class) and add the icon using the -Bicon= parameter to javapackager instead. Then you don't need to make any JNI calls in your app, and even the installer will bear the correct icon. To add window icons you should use setStageIcon.