Image credits (all files are served from this app's img/ folder; no external requests)

Profile drawings - img/avatars/*.svg
  Style: "Notionists" by Zoish - https://heyzoish.gumroad.com/l/notionists
  Licence: CC0 1.0 - https://creativecommons.org/publicdomain/zero/1.0/
  Generated offline with DiceBear 9 (MIT, https://www.dicebear.com/styles/notionists/), seeded by demo ids.
  The people are fictional; the drawings do not depict real coaches, members or guardians.

Example venue photos - img/sports/*  (cropped to 16:5, resized, re-encoded, metadata removed)
  tennis      Yente Van Eynde   https://unsplash.com/photos/LqusW4i447A           Unsplash License
  swim        Jan van der Wolf  https://www.pexels.com/photo/empty-outdoor-swimming-pool-with-lanes-37132198/  Pexels License
  soccer      Victor            https://unsplash.com/photos/raesgfwU7iM           Unsplash License
  basketball  Sayan Ghosh       https://unsplash.com/photos/DT6tSBz1Hi4           Unsplash License
  golf        Troy Spoelma      https://unsplash.com/photos/fywSeZ4qoD8           Unsplash License
  fencing     Tima Miroshnichenko https://www.pexels.com/photo/epee-mask-over-the-table-6539006/  Pexels License
              (equipment only, no people)
  Unsplash License: https://unsplash.com/license    Pexels License: https://www.pexels.com/license/
  These are example places only, not the lesson venues of any coach in this demo.

App mark (header) - drawn for this demo, 24px grid, no third-party artwork.