This Marvic Textiles Roman Blind (fabric is now discontinued) is perfect for this black and white bathroom.

As you would expect, being Marvic, the fabric is the most fabulous quality and hangs like an absolute dream.  Normally true black and white fabric can be very unforviging but the quality of the fabric makes up for any problems here.  Being a bathroom – the blind is interlined and is interlined with a sarille rather than our usual dommette.   Sarille is a synthetic interlining which works better in a bathroom to the classic 100% cotton dommette.