If I remember correctly they were talking about a Book of The Gospels from a mid-East Catholic Rite.
Interesting, though.
Most of the images above are gold and black, though.
I”m not sure about the color of other books. I found this Koran in a used bookstore many years ago and got it so I could have a copy (pre 9/11 and I was majoring in World Religions).
It is a darker green, but definitely green not black. IDR if there is gold on it or not.
I still have over 500 boxes of books in storage so it may take me awhile to find it. UGH.