They can be

Roman curtains are made from a wide variety of fabric textures. The material can be light -permeable or, on the contrary, so dense that not a single ray will break through it, it can be transparent, thin, light or opposite massive and heavy. Curtain fabrics are often decorated with embroidery, combined with lambrequins. Roman curtains are so universal that they can be placed absolutely everywhere — in the kitchen, in the bathroom, on the balcony, hang in the office or decorate them with a private house. They can be plain or painted, in a flower, a cell, and even peas.