During lockdown, the decorator Shifra Greenberg ran into a friend on the street. Like everyone, the friend griped about being stuck at home. Her house in midtown Toronto had walls the colour of powdered icing sugar, creating a stark and uninspiring ambience. Ditto high ceilings that felt cavernous and cold.  

“I said to her, ‘I know the perfect thing to lift your mood: wallpaper,’” Greenberg recalls.