Field 'CoverHeader.rleRefStruct' is never assigned to, and will always have its default value null

'MainPage.Background' hides inherited member 'Control.Background'. Use the new keyword if hiding was intended.

This async method lacks 'await' operators and will run synchronously. Consider using the 'await' operator to await non-blocking API calls, or 'await Task.Run(...)' to do CPU-bound work on a background thread.

This async method lacks 'await' operators and will run synchronously. Consider using the 'await' operator to await non-blocking API calls, or 'await Task.Run(...)' to do CPU-bound work on a background thread.

'MainPage.Background' hides inherited member 'Control.Background'. Use the new keyword if hiding was intended.

This async method lacks 'await' operators and will run synchronously. Consider using the 'await' operator to await non-blocking API calls, or 'await Task.Run(...)' to do CPU-bound work on a background thread.