Is there some rule of thumb to determine when a graphic image should have it's Build Action set as 'Content' or 'Resource'? It seems like sometimes the compiler demands one condition and at other times it requires the other. For example, the images on my toolbar have to be set as Content or the will not be visible, but if my toolbar is converted into a usercontrol they have to be Resource. How can I understand when one is required vs the other?
Thanks
