How did Moslem artists decorate the interiors of buildings ?

probably with s.u.ic.ide bombers

Explanation:

The themes used were vegetal bands for vertical or horizontal elements, marble imitations for the lower parts of long walls, chevrons or other types of borders on floors and domes, and even whole trees on the spandrels or soffits (undersides) of arches as in the Umayyad Mosque of Damascus or the Dome of the Rock;