If something has a Style (in this case, RStyleDefault), then it will use the image info for that style.
Header uses the style of /FrameStyles.title_gold_deco2. Going to framestyles, we see that title_gold_deco2 is a Rectangle style. IT refers to several different pieces: title_gold_nw_deco2, title_gold_ne_deco2, and title_gold_top_deco2.
Each of THOSE pieces contain the image Source and SourceRect.
It's like a water molecule being coposed of Hydrogen and Oxygen, which themselves have Protons, Neutrons, and Electrons. Or something like that.
