I'll get a bathroom renovation. There is an old wood window over the tub,
and I don't like it due to moisture problem. But to seal it, a lot of work
required, and outside it's hard to match the exterior stucco for the 40-yr
old house.

A reno contractor suggests doing this way. Paint black inside on the window
glass. So from outside, it looks like dark inside. Put insulation and
drywall inside the window. No window over the tub!

Is it a good idea?

Thanks.

John