- map.svg
        - ward boundaries from m18-wards-index.pdf
            - http://www.toronto.ca/mapping/catalogue/
            - converted from PDF to SVG
        - shoreline boundaries per ~/votorola/riding/map.svg
    - map-icon.png
        - exported from map.svg at 30 DPI
    - subcontext-map.svg
        - for districts (D), q.v.; source of
            - D/context-map.png (90 DPI)
            - D/context-map-small.png (45 DPI)