Sloping gardens

Grey walls, with grey carpets and grey furniture seem to be a thing at the moment. All too often with a splash or two of bright yellow dotted about (e.g. yellow cushions on the settee, or a yellow alcove). I'm not a fan. The houses I've viewed that have been renovated for sale have all had horrible new grey carpets. I'd have far preferred they'd left whatever nasty carpets were already there. I could maybe see going for pale grey walls in a bedroom, with complementary curtains and bedding (dark plum?), but so many people seem to be doing their entire houses in grey (or, even worse, black)!