Tomorrow) to keep up with any existing storylines. If a collector only bought Action Comics, they would only get twenty-five percent of the story. A triangle was featured on the cover of every Superman title with a number on it. This number indicated which week of the year the Superman title was released. Makeovers and universe reboots Complementing the creation of these franchises was the concept of redesigning the characters. The Modern Age of comics would usher in this era of change. The impact of Crisis on Infinite Earths was the first example as Supergirl died in issue 7, and long-time Flash (Barry Allen) died in issue 8. Specifically, Barry Allen signified the beginning of the Silver Age of Comics and his death was highly shocking at the time. Marvel Comics' Secret Wars would usher in a new change as well as Spider-Man would wear a black costume. This costume change led to the development of the character Venom. The interest in the speculator market of a new Spider-Man costume led to other changes for Marvel characters in the 1980s. Iron Man would have a silver and red armor in issue 200. Captain America would be fired and would be reborn as the Captain, wearing a black outfit in issue 337 of the series. The Incredible Hulk would revert to his original grey skin color in issue 325. Issue 300 of the first Avengers series resulted in a new lineup including Mister Fantastic and the Invisible Woman, of the Fantastic Four. Within the decade, Wolverine would switch to a brown and yellow costume, Thor would be replaced by Thunderstrike, Archangel would emerge as the X-Men's Angel's dark counterpart after serving as one of Apocalypse's Horsemen, and many other Marvel characters would have complete image overhauls. The changes to Spider-Man, Thor, Captain America, Iron Man, Wolverine and most other Marvel characters would be undone in the early 1990s. The 1990s would bring similar changes to the DC Universe, including the death of Superman and the crippling of Bruce Wayne in 1993. The only lasting change was Kyle Rayner replacing Hal Jordan as Green Lantern. In addition to individual character or franchise/family wide makeovers, Crisis on Infinite Earths ushered in a popular trend of "rebooting", "remaking" or greatly reimagining the publisher-wide universes every 5–10 years on varying scales. The practise of rebooting entire universes occurred frequently enough that this era has also