Template talk:Member
The color scheme for "era_color", as I see it, should be used to signify -- at most -- the era in which the character was introduced to the Legion. Especially for characters preceding the first fundamental reboot, that of Zero Hour.
Nearly all of the Legion characters did not change in any fundamental respect between the "pre-Crisis" (on Infinite Earths) and "post-Crisis" periods. (Supergirl, who was erased by the "Crisis" events from the heroic history of the 20th Century, is the only such Legion member of note.)
In fact, for the Legion, the major storytelling semi-discontinuity was not with the "Crisis," but with the later v3 n37-38 "Pocket Universe" retcon. This re-cast Superboy's role in the founding of the Legion, and involved machinations of the Time Trapper, wherein the Legion had not (before Cosmic Boy's sojourn preceding these issues) "really" been entering the past of their supposed Earth, but that of a specially created dimension.
Aside from re-telling (or retconning) many past stories, to fit this convoluted re-making of Legion "origins," the substance of the characters then existing was not really changed, except for Superboy. All 30th-Century characters kept their qualities, origins, backstories, powers, and relationships.
Duplicating character entries between the first three items in the current "Eras" list creates needless duplication, except for Supergirl (and, in regard to his Zero Hour re-making, Cosmic Boy).
~ Greybird, 27 June 2006