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docs: enable dark mode behind theme toggle (default stays light)#391

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phani/dark-mode-enable
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docs: enable dark mode behind theme toggle (default stays light)#391
jarugupj wants to merge 4 commits into
mainfrom
phani/dark-mode-enable

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@jarugupj
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Summary

Enables the Mintlify theme toggle so docs readers can switch to dark mode. The default appearance stays light — first-time visitors see no change, the toggle is opt-in.

Changes

  • docs.jsonappearance.strict: false, dark logo + dark background #111113 (Radix Gray dark-01).
  • logo/light.svg#EDEEF0 recolor of the existing logo (paths byte-identical to black.svg) used in dark mode.
  • style.csshtml.dark-scoped overrides for tables, the .tinker-box border, and the pricing button border. Light mode rules untouched.
  • images/tinker-bot-dark.svg + one CSS swap — the hero bot is a flat #1C2024 silhouette that's invisible against #111113, so it gets a #EDEEF0 recolor.

Notes

  • Default stays light by design. This PR only restores the toggle; it does not flip the default. That's a separate brand call to make later.
  • Homepage card illustrations intentionally keep their light tiles on dark. They read as framed illustrations (same pattern Stripe, Linear, Notion use) and keep the cream brand vibe consistent with the kernel.sh landing. Not a bug.
  • Only the tinker-bot got a dark variant because it's a silhouette without a card frame — that one's a real readability fix, not a brand call.
  • WCAG AAA contrast: body #EDEEF0 on #111113 ≈ 16:1, accent #CAB168 on #111113 ≈ 9:1.

Test plan

  • Visual: load Mintlify preview, toggle dark on/off across Guides, API Reference, CLI, MCP, Changelog
  • Tables + code blocks readable in dark
  • Light mode unchanged (existing pages render byte-for-byte the same)
  • Mobile/narrow viewport in dark mode

jarugupj and others added 3 commits May 29, 2026 22:46
- Add light/dark logo pair and dark background (#111113, brand grey-dark scale)
- Add html.dark overrides for tables, tinker-box, button border, hero bot
- Keep default appearance light; dark is opt-in pending brand/design review
- add dark-recolored variants for the four homepage card svgs
  (o11y, chromium, auth, stealth) so cream/tan/green tiles no longer
  blast on the dark page bg
- add dark-recolored tinker-bot variant and drop the filter: invert()
  hack on style.css
- swap variants under html.dark via content: url(...) so index.mdx
  stays untouched and light mode is byte-for-byte identical

contrast on #111113: body #EDEEF0 ~16:1, accent #CAB168 ~9:1 (WCAG AAA).
the cream/green/tan card tiles read as framed illustrations on a dark
page, not as page leakage. keeping them aligns with how the kernel.sh
brand handles illustrations (always light surface) and avoids the
visual inconsistency of charcoal-everything-except-chromium-green.

tinker-bot keeps its dark-recolored variant: it's a flat silhouette
with no card frame, so it actually disappears against #111113 — that
swap is a readability fix, not a brand call.
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mintlify Bot commented May 30, 2026

Preview deployment for your docs. Learn more about Mintlify Previews.

Project Status Preview Updated (UTC)
Kernel 🟢 Ready View Preview May 30, 2026, 3:25 AM

💡 Tip: Enable Workflows to automatically generate PRs for you.

…ewrite

mintlify rewrites img srcs at deploy time to a cdn url with query params
(/{deployment}/{hash}/images/tinker-bot.svg?fit=max&auto=format&...), so
the prior [src$="..."] suffix selector never matched in production and
the dark recolor swap silently no-op'd. [src*="..."] handles both raw
and rewritten srcs.
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Risk assessment: Low risk.

This PR changes the Mintlify docs site's appearance configuration, adds dark-mode-only CSS overrides, and adds SVG assets for the dark logo/tinker-bot. The default theme remains light, the changes are confined to documentation presentation, and there are no production code, infrastructure, auth, data, or shared-library changes.

I found no CODEOWNERS file in the repo and no existing approval, so approving under the Low-risk rule.

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