Canvas now 16:9 with circle filling height. Radial fade gradient uses
userSpaceOnUse for true circular shape. Hop 15+ folded into final ring.
Margins trimmed to fit content.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Script now auto-converts to PNG after generating SVG. Tries magick,
convert, or rsvg-convert in order.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>