Well, it certainly is yellow (Trolley photo of the day)
One of the new Trios (Orange/Yellow) lines up alongside one of the old(er) Astras (Red/Orange) at the Gibbs St temporary terminus of the "downtown" trolley line. (Given that it goes up to 23rd NW and down to the south end of Homer's Folly, it's not much of a downtown line anymore.
One nice thing about this picture (for me) is that is shows one easy spotting difference between the Astras and the Trios; the Astra has a little clerestory on top while the Trio has the roofline bumped up to the level of the air conditioner.