I was modifying the prebatshields and after doing a long, hard work with readbif (modification of the colourpalette and hand painting) I tried them in the game. I was surprised after seeing more o less the same original shields.
After some investigation I remarked that those shields have three frames.
Is it necessary to modify one by one?
Are the three necessary?
are the three identical? (I guess they are very similar but not identical)

Can I modify (create) them with the new BlankGraphicsSet tool?