"The house also served as a kind of diary, Bergman often wrote on the walls and furniture, scribbling the dates and times of radio programs he wanted to listen to or phone calls he was to make. On the back of his workroom door, he and Liv made drawings daily about their feelings for each other. Red hearts and faces meant good days; black O’s, sometimes a string of them, signaled darker times. At the end of one line, Liv drew a simple heart, with the words ‘Liv leaves.’"
I’ve had the W Magazine with the story on Ingmar Bergman’s Faro estate sitting on my coffee table for probably a month and a half, but only got around to reading it today. I don’t know if you can get your hands on the issue at this late date, but luckily the text and images are online. Unfortunately there are no photos of said decorative graffiti.