Abstract base class for plugins.
Extend this class to create plugins that can provide new panel pages and content for pages.
Example
public class MyAddin : Tuner.Addin {
construct {
// Add pages and content from specified ui file
add_from_resource("/org/example/MyAddin/page.ui");
// Add page using method
add_page(new CustomPanelPage());
// Add content using method
add_content(new AppearanceContent());
}
}