internal void RenderCurrentImage(Area favorite)
{
LastRenderedArea = CurrentArea.Clone();
CurrentImage = LastRenderedArea.Render(
CurrentImageRenderWidth, CurrentImageRenderHeight);
Notify(nameof(CurrentImage));
// Notify others in case they want to do something, like
// resetting a ScrollViewer which we should not know about here.
CurrentImageRerendered?.Invoke();
}
