SKOGSKLÖVER roller blind white – allows partial light but its a top down blind. I want a top down/ bottom up blind with the same amount of light coming through, you can see out a little through the fabric.

https://www.bottomupblinds.co.uk – right colours – price is around £180 mark – quite expensive

HORNVALLMO Pleated blind, white/top-down bottom-up, 100×130 cm £25 – colour might block out too much light – could I possibly replace the material with something like the

SANDVEDEL Roller blind, beige, 100×195 cm – £27 – colour might be right

https://www.blinds-2go.co.uk/pleated_blinds.htm
https://www.blinds-2go.co.uk/day-and-night-duo/20598/night-and-day-duo-simply-white.html – closest to what I want I think (£120) ordering a sample