Prompt
"Generate an image of a London Underground map focusing on the District line, with its signature green color (Pantone 355C) prominently displayed, stretching from Upminster in the east to Ealing Broadway, Richmond, and Wimbledon in the west and southwest, passing through Central London, West London, East London, and Southwest London, with notable stations, interchanges like Earl's Court, and branches such as Wimbledon, Richmond, Ealing Broadway, and Upminster, set against a clean and simple background that highlights the line's route and connections to other London Underground lines, National Rail, and transport networks."