Swap the landing-page hero from a static `<img>` (white-faced —
which glared as a light box on the dark theme) to an INLINE svg
whose linework uses `fill: currentColor` and whose faces are
transparent. The wireframe now inherits the theme text colour
(`svg.hero-logo { color: var(--pst-color-text-base); }`) and the
page background shows through, so it flips correctly with the
light/dark toggle.
- `tractor_logo_hero.html`: the inline svg partial (`.st0` ->
`currentColor`, `.st1` -> `none`), `.. raw:: html :file:`-d into
`index.rst`,
- the shared `tractor_logo_side.svg` is untouched here (navbar +
favicon still ride it).
(this patch was generated in some part by [`claude-code`][claude-code-gh])
[claude-code-gh]: https://github.com/anthropics/claude-code
Full `docs/conf.py` rewrite targeting `pydata-sphinx-theme` 0.18
(3-col layout: nav-index left, content middle, page-toc right)
skinned to a minimal b&w look via `_static/css/custom.css`, keeping
the `algol_nu` pygments style.
Also add 2 local sphinx exts under `docs/_ext/`,
- `d2diagrams.py`: a `.. d2::` directive rendering `d2lang` sources
at build time when a `d2` bin is found (`D2_BIN` env supports
argful values eg. `'nix run nixpkgs#d2 --'`), falling back to any
git-committed SVG, else emitting the raw source as a literal
block; no pypi ext was usable (all stubs or returncode-swallowing
per the #157 research),
- `marginalia.py`: a theme-agnostic `.. margin::` directive
(`sphinx-book-theme` style `Sidebar` subclass) for prose-anchored
RHS asides; the custom css floats these (and `:margin:` d2 figs)
into the right gutter on wide screens.
(this patch was generated in some part by [`claude-code`][claude-code-gh])
[claude-code-gh]: https://github.com/anthropics/claude-code
Gud Boi