I think it'd be pretty interesting if Earth-likes in elite had a bit more variation, namely in the color of vegetation. Instead of every Earth-like being green, they would have different colors depending on the class of their sun. For example Capitol in the Achenar system would be very colorful due to its blue sun. It would have lots of autumnal colored vegetation year round and some bluish vegetation as well. In contrast, an Earth-like with an M or K class sun would have dark, or even black vegetation. It'd be a bit more realistic and would add some nice variety to Earth-likes while we're still are so far away from landing on them.