Decor can be ugly, but what about when it’s deadly? Continuing with our Halloween series this week, we’re talking about Scheele’s Green, the arsenic-based pigment that filled homes in Britain throughout the nineteenth century, and its surprising connection to William Morris, one of the most influential figures of the Arts & Crafts Movement. Millions of miles of arsenic green wallpaper filled the homes of Victorian Britain, causing illness and death with toxic dust. You’ll never look at green walls quite the same way again…