[MehranMarxian]

What changed

• Replaced favicon.ico (16/32/48), favicon.svg, apple-touch-icon.png (180), icon-192.png and icon-512.png with the new sculpted-head image from new-favicon.png.
• Icons are 8-bit greyscale PNGs, recompressed: 512 px = 55 KB, 192 px = 8.5 KB, 180 px = 7.5 KB, ICO = 3.3 KB.
• favicon.svg is now a tiny SVG wrapping a 64 px PNG. Every page links the SVG, and browsers prefer it over the ICO, so leaving the old "M" there would have kept the old icon showing.
• Bumped --site-version to 26.81 and added a CHANGELOG line.

Testing

• Local server: all five icon URLs return 200 with the right content types and sizes; version reads 26.81.
• No page markup changed, so no layout impact. check_links.py reports the same 30 pre-existing archive/ image misses as on main.

Risks / notes

• The source art is dark on black, so at 16 px the tab icon is a faint silhouette. Browsers cache favicons hard, so a hard refresh may be needed to see it.
• new-favicon.png and apple-touch-icon copy.png are still untracked in the working folder and not committed.

Suggestions

1. Crop tighter on the face for the 16-32 px sizes so the tab icon reads better.
2. Add a maskable 512 px icon to the manifest for Android.