Where some of us merely deal in the past, Philidelphia-based Marie Colette <i>lives</i> in it. Her specialty is tempera painting, a technique usually associated with the walls of Renaissance churches and Baroque mansions. Colette, a French émigré, carries on the tradition with interior projects around the region. You’ll also find painted furniture for sale in her narrow little shop on Germantown Avenue (take care not to miss the fading hand-painted sign). If you’re lucky enough to be in the Chestnut Hill neighborhood on a Monday, call Colette ahead of time and you can grab a slot in her weekly studio class.