That is weird, but your beardie will love the extra room when he's older!
I think leos are really cute! A crestie is another option. Similar in size and temperament to leos, although they have sticky feet and can (and will) climb the glass, and they look much different.
Lol, they are pigs! That's great that he eats veggies. Many baby beardies don't.
Beardies change color depending on body temperature and stress levels. When they are stressed out or cold, they turn darker (to look scarier / to warm up), and when they are comfortable and warm, they lighten up. :) It's perfectly normal, unless your beardie is non-stop dark, he's fine.