fix(marketing): align Antigravity icon with provider marks

[voltcrash]

The Antigravity image included its own rounded dark tile, which created a second border inside the marketing hero card.

Replace it with the transparent full-color mark and size it in the hero and provider list to match the other icons.

Screenshots

Before	After

Verification

• vp run --filter @t3tools/marketing typecheck
• vp run --filter @t3tools/marketing build
• Reviewed the marketing homepage in the T3 Code preview browser.

Model: GPT-6 (Codex)

Summary by CodeRabbit

• Style
  • Adjusted the Antigravity marks in the harness grid and hero for updated sizing and presentation.

[macroscopeapp]

Approvability

Verdict: Approved at 1d5f25f

Macroscope's review found this PR approvable — This is a narrowly scoped marketing presentation fix: one static icon asset and its homepage sizing/styles are updated. It introduces no functional, schema, security, billing, or deployment changes.

^{You can add or adjust custom eligibility rules. Learn more.}

[coderabbitai]

Navigate logical layers of code changes, visualize relationships, and explore their blast radius.

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: Repository: pingdotgg/t3code/.coderabbit.yaml

Review profile: CHILL

Plan: Advanced

Run ID: 184c6dae-0d64-45a1-9973-cd4bf2adb3bb

📥 Commits

Reviewing files that changed from the base of the PR and between f5ef0dd and 1d5f25f.

⛔ Files ignored due to path filters (1)

• apps/marketing/public/harnesses/antigravity.png is excluded by !**/*.png

📒 Files selected for processing (1)

• apps/marketing/src/pages/index.astro

Included review availability: Your plan provides up to 10 included reviews per hour; 8 remain after this review.

---

📝 Walkthrough

Walkthrough

The Antigravity harness grid mark now has a dedicated class and 28px image size. The floating Antigravity icon uses the default card styling and renders at 74% size.

Changes

Antigravity mark styling

Layer / File(s)	Summary
Mark and card styling apps/marketing/src/pages/index.astro	The harness grid mark gains a dedicated class and 28px image size. The floating icon no longer uses a custom background or border, and its image is sized to 74%.

Priority: ⬇️ Low

Estimated code review effort: 1 (Trivial) | ~5 minutes

Change: Bug fix

Suggested reviewers: juliusmarminge

Merge Risk: ⚪ Minimal · up to 1d5f2

The Antigravity icon now uses a transparent, full-color mark at the intended inset sizes, avoiding the former dark-tile framing. No concrete user-facing regression is evident, so this visual change is ready to merge.

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check. Docstring coverage is scoped to functions touched by this diff. Analyzed 0 functions across 0…
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Title check	✅ Passed	The title clearly and concisely describes the Antigravity icon alignment change.
Description check	✅ Passed	The description explains what changed and why, includes before-and-after screenshots for the UI change, and lists verification steps. It does not use the template’s exact headings or include its check…

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create a new PR

---

_{Comment @coderabbitai help to get the list of available commands.}

[juliusmarminge]

Superseded by #13365 (fix(marketing): use the official OpenCode and Antigravity logos), which already landed the marketing Antigravity/OpenCode harness logo fix on main.

Closing this as leftover hygiene — please reopen if something distinct remains.