Canyon Climb (climb) art assets. Every third-party file below is CC0 1.0 (public domain dedication).
Licences were re-checked on the source pages and in the archives on 2026-10-14 (round 1 and again for round 2).
Archives were downloaded and extracted in a scratch folder outside the project; only these image/font files were copied.

ledge_l.png, ledge_m.png, ledge_r.png   (Sprites/Tiles/Double/terrain_snow_horizontal_left/middle/right.png)
flag_a.png, flag_b.png                  (Sprites/Tiles/Double/flag_yellow_a/b.png)
flag_ok_a.png, flag_ok_b.png            (Sprites/Tiles/Double/flag_green_a/b.png)
boulder.png                             (Sprites/Tiles/Double/rock.png)
snowpile.png                            (Sprites/Tiles/Double/snow.png)
  New Platformer Pack 1.1, by Kenney (www.kenney.nl).
  Source: https://kenney.nl/assets/new-platformer-pack
  Archive: https://kenney.nl/media/pages/assets/new-platformer-pack/1896103897-1764756702/kenney_new-platformer-pack-1.1.zip
  License: CC0 1.0 (page: "Creative Commons CC0"; License.txt in the archive: "Creative Commons Zero, CC0").
  Changes (round 2): ledge_l/m/r.png are recoloured. The grey stone body is remapped to the outcrop ramp
  #343d56 / #46516e / #5a6683 and the outline to ink #151b2e; the snow top and icicles are unchanged.
  The other files are unchanged.

cloudbank_a.png   (PNG/Flat/clouds1.png)
cloudbank_b.png   (PNG/Flat/clouds2.png)
peaks.png         (PNG/Flat/pointy_mountains.png)
peaks_phone.png   (PNG/Flat/pointy_mountains.png, recoloured)
  Background Elements, by Kenney (www.kenney.nl).
  Source: https://kenney.nl/assets/background-elements
  Archive: https://kenney.nl/media/pages/assets/background-elements/b66a1ddec7-1677670395/kenney_background-elements.zip
  License: CC0 1.0 (page: "Creative Commons CC0"; License.txt in the archive: "Creative Commons Zero, CC0").
  Changes: cloudbank_a/b.png and peaks.png are unchanged (tinted at runtime). peaks_phone.png is the same image
  with every opaque pixel recoloured to #4f6fae (alpha kept), for the phone background.

puff_a.png, puff_b.png, puff_c.png   (PNG/White puff/whitePuff00.png, whitePuff03.png, whitePuff07.png)
  Smoke Particles, by Kenney (www.kenney.nl).
  Source: https://kenney.nl/assets/smoke-particles
  Archive: https://kenney.nl/media/pages/assets/smoke-particles/23249a0d35-1677695171/kenney_smoke-particles.zip
  License: CC0 1.0 (page: "Creative Commons CC0"; license.txt in the archive: "License (CC0)").
  Changes: downscaled to 128 px wide.

glint.png   (PNG (Transparent)/star_06.png)
flash.png   (PNG (Transparent)/light_02.png)
  Particle Pack, by Kenney (www.kenney.nl).
  Source: https://kenney.nl/assets/particle-pack
  Archive: https://kenney.nl/media/pages/assets/particle-pack/f8fe0f8cb8-1677578741/kenney_particle-pack.zip
  License: CC0 1.0 (page: "Creative Commons CC0"; License.txt in the archive: "Creative Commons Zero, CC0").
  Changes: downscaled from 512x512 to 128x128 (tinted at runtime).

granite.jpg   (Rock058_1K-JPG_Color.jpg)
  Rock 058, by ambientCG (Lennart Demes).
  Source: https://ambientcg.com/view?id=Rock058
  Archive: https://ambientcg.com/get?file=Rock058_1K-JPG.zip
  License: CC0 1.0 (page: "All assets are released under the Creative Commons CC0 license").
  Changes: downscaled from 1024x1024 to 256x256, luminance-remapped onto a cool blue-grey (#3a4562 average,
  25% of the original chroma kept), saved as JPEG quality 80.

crystal.png   (png/Object/Crystal.png)
pine.png      (png/Object/Tree_2.png)
snowstone.png (png/Object/Stone.png)
  Winter Platformer Game Tileset, by pzUH.
  Source: https://opengameart.org/content/winter-platformer-game-tileset
  Archive: https://opengameart.org/sites/default/files/WinterTileset.zip
  License: CC0 1.0 (OpenGameArt licence field: CC0).
  Changes: pine.png is downscaled from 228x280 to 104x128. pine.png and snowstone.png are only used in the cover/banner SVGs.

FreeCheese-Regular.woff2   ("Climb Display")
Stampcraft-Regular.woff2   ("Climb Label")
  GGBotNet Fonts CC0 (All-in-1), by GGBotNet.
  Source: https://opengameart.org/content/ggbotnet-fonts-cc0-all-in-1
  Archive: https://opengameart.org/sites/default/files/ggbotnet_fonts_cc0_2025_dec.zip
  Files: "GGBotNet Fonts CC0/Free Cheese/Web Open Font Format (.woff)/FreeCheese-Regular.woff2" and
         "GGBotNet Fonts CC0/Stampcraft/Web Open Font Format (.woff)/Stampcraft-Regular.woff2"
  License: CC0 1.0 (OpenGameArt licence field, and the LICENSE file in the archive is CC0 1.0 Universal).
  Free Cheese is also embedded as base64 in /assets/covers/climb.svg and climb-banner.svg.

Embedded in the cover/banner SVGs (base64): ledge_l/m/r (round-2 granite slices), flag_a, boulder, pine, crystal,
snowstone (above), and the round-1 Kenney background_clouds crop (New Platformer Pack, Sprites/Backgrounds/Double/
background_clouds.png, cropped and keyed; the standalone clouds.png file was retired in round 2, as was wall.png).

Hand-made for this game (no third-party source): climber-mask.svg and climber-line.svg (phone mountaineer avatar),
the mountaineer climbers and their ice axes, the far gorge walls and rim, rock roots, the granite overhang shelter
and its snow cornice, camp tags, icicles, rotten-ice ledges, summit rope ladder and camp pennants, road-sign warning,
peak ridges, snowfall, topo lines, the CSS/SVG phone glyphs (ice axe, mountain, crampon teeth, rope border, pennant),
and the cover/banner composition, gorge layer and lettering treatment.

2026-10-18 Direction D: alpine-canyon-v2.png generated with OpenAI imagegen for this project; see art-prompts.txt. Faceted ledges and articulated climber modifications are original code-drawn artwork. Existing asset credits retained.