It looks like Community Transit has new buses running, the 28100 series. These are the first new local buses since 1999. As far as I can tell, they're of the New Flyer D40LFR type, and feature amber signs in lieu of the green that is common to the local fleet. They may even have air conditioning, as the one I saw had a large grille instead of a window at the back. Something really strange was that the numbering on the back is vertical, not horizontal like the rest.
I wanted to take a photo, but by the time I got my cell phone out, it was already pulling away. Hopefully I'll get a chance to ride one of these sometime soon.
It's hard to say, but it may have to do with these: