I don't know how to force audio when in silent profile, but I'd rather avoid doing it. When silent I'd want my phone to shut up at all, but adding an option in settings won't cost anything.

Widget can already be resized, it dinamically takes the size of the image files in /opt/internetradiowidget/DIRECTORYOFICON. There is a "custom" directory where to put your chosen image of your chosen size.

Version 0.1.0:
Widget can now show a label above the button.
A list of quickpick stations can be loaded from MyDocs/.documents

EDIT: In next version I'll put the ability to set the current playing title as the custom label text, since I often miss the banner and I start and stop just to see what's playing on.