I have white roller shades made out of a mesh type material that were custom made and our windows are film treated to cut out UV rays. The mesh roller shades still allow 'brightness' and light to enter the room but block out too much light as my room is south facing and it can get so hot. And I just roll up the shade with the chain during the winter days to allow the full light in. I decorate minimally and like clean lines. I'm not a curtain person and I would tire of the same fabric over time. And any curtains I've ever seen get sun damaged and bleached out.