In the documentationfor the setTheme() function it says:
See the WidgetDemo sample to see how a theme file is structured and can used in a real app.
But there is no theme set in the WidgetDemo sample! And as far as I can see, no other documentation for this at all.
cornerRadius is no longer supported and I need to override the default theme to make it zero. But more than that, I’d really like to know how to tweak the theme.