A stained glass window usually has several sections to it,
and they handle light differently.
-- The sections that are completely clear, and if you look
through one of them you can see the cars outside in the
parking lot, are transparent.
-- The sections that are milky, and light comes through them
but if you look through them you can't see the shapes of cars
or people, are translucent.
-- The sections that are so heavily stained or tinted that they
look completely dark are opaque.
