I bought several sets for figure insignia. I noticed that the eagles for the various services look dark while the photographs of uniforms I've seen look light. What gives?

I got armbands, but I couldn't find upper arm patches such as for signals. Anyone know of any?

I used to use Archer insignias but they're becoming too expensive for a full uniform insignia set. Tamiya has everything included on one sheet for all ranks, and enough for several figures. http://www.model-making.eu/zdjecia/2/7/9/2774_0-auto_downl.jpg