DENVER – Some walls are built to shut people out. Artist Danielle SeeWalker fills walls with color to let people in. SeeWalker is a Lakota artist who started painting murals professionally in 2020. Since then, she has done about 50 of them — many with a message, including a mural she painted on a wall in Denver Central Market’s parking lot. It is a colorful painting of a Native women, with the message “LANDBACK.”