[guofoo]

New apps need a distinct icon in the approved OctoSense family, with artwork authored independently of platform masks. Update root/generated-app agent instructions, the script starter SVG and READMEs, quickstart, publishing checklist, card-template pointer and script/image-to-card flows so the same rules reach every new app.

The default format is a 64-point square master with foreground in the central 66%, a restrained illustrated object and ivory/ink materials with supporting accents, and no baked platform corners or outer shadow. The template demonstrates the format; authors must replace its identity before submission and review 64/40/24 px and platform frames. Store apps declare their own bundle artwork, without modifying Makepad or OctoSense's built-in replacement registry.

App Hub's ICONS guide owns packaging and admission limits; it has a matching update. The approved family is tracked in OctoSense PR #555. No admission policy, runtime pins, release workflow or historical evidence changes.

Validation:

• Onboarding suite: 39 tests run, 34 passed and 5 optional build tests skipped.
• Relative Markdown links: 0 broken, 0 pending; whitespace checks pass.
• A fresh tools/octo new invocation copies the exact shared starter SVG and updated AGENTS instructions.
• SVG parsing, square/full-bleed geometry, size and raster-measured central 66% foreground checks pass; the source matches App Hub's starter byte for byte.
• The freshly generated script fixture passes icon file checks with a current pinned Hub CLI and has only the expected missing-screenshot listing refusal. No screenshot placeholders were created.

Native UI, devices and optional Wasm build fixtures remain unverified for this change; no app is being published.