Are you referring to the leather seats in the A320? Those grey leather ones debuted in 1994 with the first Airbus deliveries, but most have been replaced with the adustable headrest, cloth seats that "KonaB777" knows.
The first two B777 two-class airplanes we received had a new interior color design (light grey carpet and greenish-blue seats) which has since been dropped due to poor employee and customer feedback. Our "new-new" interior colors are only on two a/c so far: one A320 and one B757. While the seats are the same as our current UnitedFirst product, the colors have returned to our dark grey/blue "theme." It looks rather somber, but quite professional. The bulkheads' design with the orange/red/blue wavey carpet has been replaced with a blue and grey "mesh." Hard to describe, but very stylish.
Sorry-- I know this answers your question... but then rambles on. ...Will you be flying the two-class B777 soon? In March United will offer two dailies between LAX and HNL with the aircraft. If you are, I hope you enjoy that new-plane smell!