In museums, they often have blinds made of a fine mesh, that
presumably do a good job of cutting down on light and heat while still allowing a view of the world outside. They make a dreamy effect of it,
like https://www.dropbox.com/scl/fi/42oktmr1s3m1uu1gkzi47/Budapest.jpg?rlkey =8dkekxlk3ov6rtrmnqwe9fvgm&dl=0.
What is this material called - is there a brand name example I could
look up? I don't think I have seen them in shops.
Voile might be an approptiate search term but perhaps too opaque for your liking.