a-are you ok there, buddy????
Answer:
I can't see the picture of the artwork so I can't really answer. Sorry :/
I think it is colored lights illuminate the top during different occasions.
Theater<span> is the correct spelling in American English. </span>
Answer:
the upper part of the nave, choir, and transepts of a large church, containing a series of windows. It is clear of the roofs of the aisles and admits light to the central parts of the building.
Explanation: