With a toddler in tow and a penchant for the contemporary look of their East Coast roots, Kristin Santi and Matthew Diddy wanted a clean, bright and well-functioning kitchen in their Chesterfield home. Dana Dunbar of Lorrien Homes, the general contractor who spearheaded the young couple’s renovation, says the space felt slightly claustrophobic thanks to dim colors and its lack of light, natural and otherwise.