This one made me think of crepuscular, but it is almost the reverse of that, closer to lucent.
Coruscant – shining, brilliant
Still in The Orchard Keeper, only a couple pages from the previous post. Here is the sentence:
“Through the leaves of the hardwoods he could see the zinc-colored roof of the church faintly coruscant and a patch of boarded siding weathered the paper-gray of a waspnest.”

