Somehow I can tell it it's a room in a USian or canadian house, not sure why exactly though. Maybe it's the closets, door styles, the carpet, or how they paint their walls. Windows, outlets and door knobs are a dead giveaway.
US: pastel colours, gaudy ceiling furniture, furniture the colour of the walls, tacky metal frames sprayed with gold, needless 6-panelled doors, walk-in closet.
If this was UK: white walls + cheap spotlights that point nowhere, wood-coloured furniture, tacky metal frames but thinner and black, smaller doors with stupid handles, no closet.
If this was Germany: white walls + no ceiling fixtures, cheap but wooden furniture, tacky metal frames but strong for some reason, clearly framed doors, wide light switches for household pets, no closet.
It's a particular shade of paint. It's widespread enough in the UK that multiple brands do their own version of Magnolia. It's often what's used when people don't want to have to decide what colour to paint, or in council housing, and it's increasingly common in private rentals.
I had one in my first apartment, in Sweden, but I had one of those really high beds you can keep a desk under, so I had to watch my head when climbing down.
And also watch my head when standing up from the desk.
But hey, I had both a desk, an armchair and a bed!
We have them in Japan, but they're mostly at businesses. That's slowly changing for homeowners, but not as much for renters (due to rules about modifying things).