Screen reader descriptions of User Interfaces (UIs) allow Blind and Visually Impaired (BVI) users to navigate and understand functionality; however, they do not allow BVI designers to edit and comprehend visual attributes. In this poster paper, we discuss the design and preliminary exploration of a multi-modal and accessible approach for BVI designers to edit visual layouts of webpages while maintaining visual aesthetics. To explore our multi-modal approach, we created a three-part system: an accessible canvas that allows BVI developers to use touch and gestures to modify the visual properties of web UI elements, a code editor that supports direct code modifications, and a controller that processes proposed updates from either the canvas or code editor and then checks if the updates violate design guidelines.