onCheckerboardOffscreenLayers method
Returns 'Off Screen Layers Checkerboard' boolean indicator if any.
Implementation
bool? onCheckerboardOffscreenLayers() =>
    inCheckerboardOffscreenLayers?.call() ?? false;Returns 'Off Screen Layers Checkerboard' boolean indicator if any.
bool? onCheckerboardOffscreenLayers() =>
    inCheckerboardOffscreenLayers?.call() ?? false;