That's pretty cool.
I already knew that in the 70s that due to the films and all, the "S" shield was retconned to be the crest of the family El. But I find it hard to believe that John Byrne could draw the shield by just drawing (and seeing) the "negative" yellow spaces. Although the idea that the YELLOW parts are the "alien glyphs" and are actually the important part of the symbol to the Kryptonian Eye is a fascinating one.
I already knew that in the 70s that due to the films and all, the "S" shield was retconned to be the crest of the family El. But I find it hard to believe that John Byrne could draw the shield by just drawing (and seeing) the "negative" yellow spaces. Although the idea that the YELLOW parts are the "alien glyphs" and are actually the important part of the symbol to the Kryptonian Eye is a fascinating one.