They should call this planet Tatooine.
It's far, far more common for G-class stars to orbit further away than 1AU than this instance. You end up orbiting one star or the other, which gives you a much more diverse sky. As I recall, a planet can stably orbit Centauri B at ~1AU. It's a redder star than ours, so light is going to be more orange. Centauri A, on the other hand, is just barely more yellow than ours, but is somewhere between the orbit of Saturn and the orbit of Pluto away. The tricky thing about arrangements like this is the stars sweep each others' outer orbits, so you can't really have any planets further from the stars than Mars... unless they're tiny and hot, in which case they kick out a lot of UV. So a prospective planet orbiting Centauri B ends up having not much in the way of neighbors, but also never gets dimmer than twilight half the time. As far as plants, there was an interesting article on the photosynthesis of alien plants in Scientific American a while ago: http://www.scientificamerican.com/slideshow.cfm?id=the-color... Shit. I'll just submit that.