Visible details
Dark horizontal blinds cover the windows of a blue bedroom. A pale headboard and bedding contrast with the stronger wall and window colours. The slats' horizontal lines sit beside vertical wall panelling, making the meeting of these two directions a useful detail to discuss.
Room context
Consider this approach if you want a darker frame around bedroom windows. Show the bed position and the lamps used in the evening. Describe night-time privacy and morning light requirements separately; a dark appearance alone does not establish how a covering will perform.
Window questions
Provide each window's dimensions and its distance from the bed. Is the control reachable from the side? Discuss the raised stack, sash clearance and a sample comparison under the bedroom's actual lighting.