10 Things Everyone Always Gets Wrong About Green Lantern
1. Green Lanterns Cannot Effect The Color Yellow
This Silver Age tidbit is still passed around as though it is common knowledge, despite it being outdated.
While the Silver Age did create a full "can't work on yellow" limitation as a means to nerf the uber-power that comes with being able to create constructs with very little limits, it changed with the times.
The first change was the cause of this limitation being a yellow flaw in the Central Battery on Oa, meaning every ring that drew from the main power source would have that issue. The gradual shift away from that absolute rule began with Hal Jordan overcoming the yellow barrier by a true show of willpower. It then became an almost rite of graduation that a Lantern couldn't become a full-fledged member until they show they could overcome it.
This rule was outright eliminated when Hal Jordan went insane, killing most of the Green Lanterns and absorbing the Central Power Battery into himself, freeing the fear entity, Parallax. It was a bit convoluted due to the story at the time, but without the evil entity trapped in the battery, it totally erased the yellow limitation from the Green Lantern Corps.