Maybe not, but having them as bright spots on the dull finish looks wrong.
And an interesting note (at least for measure 32):
http://www.shipcamouflage.com/measure_32.htm
All bright or shiny objects, no matter how insignificant, shall be painted, covered, or removed.
Glass windows shall be covered or removed, especially during the day in sunny weather, and at night when anticipating searchlight discovery. Insofar as conditions permit, similar precautions shall be taken on airport lenses.
Guess I should have removed the blue windows!