tools/wallpapers.py writes them from the Shift geometry, so they follow
the mark: Graphite (the default), Strata, Porcelain (light) and Dial.
Each is a 3840x2160 SVG with a JPEG render beside it. JPEG is the right
format for gradients under grain, and the branding README now says why
this is the one exception to its no-JPEG rule.
Removed: wallpaper1 (drawn flat, and built on the retired Guru mark),
the site's unused copy of it, and the two superseded wordmark PNGs. The
root README showed one of those, and now shows Graphite.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01S1giNvrHTrPMPw7V6x1kQ4
