c0b500b692
The gutter sits 100 px to the left of the tree canvas on md+ viewports
(hidden entirely below md to preserve scrollable area on phones — see
spec's deliberate dual-audience trade-off). Per occupied generation
row it draws:
- A full-width decorative stripe rect alternating transparent and
var(--c-gutter-stripe). aria-hidden because it carries no meaning.
- The label `G{n}` at the left edge, sourced from the un-shifted
node.generation value (never the post-normalise rank), wrapped in
`<g role="text" aria-label="Generation N">` so screen readers
announce the full word instead of "G three".
CSS adds --c-gutter-stripe in both the light root and the dark mode
blocks (8% / 14% mint over canvas — decorative contrast carve-out).
Browser tests cover label rendering, the ARIA wrapper, and the
viewport-below-md absent-gutter path via a matchMedia stub. Existing
StammbaumTree structural-invariant tests still pass since none of
them assert anything inside the gutter region.
Refs #689
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
sv
Everything you need to build a Svelte project, powered by sv.
Creating a project
If you're seeing this, you've probably already done this step. Congrats!
# create a new project in the current directory
npx sv create
# create a new project in my-app
npx sv create my-app
Developing
Once you've created a project and installed dependencies with npm install (or pnpm install or yarn), start a development server:
npm run dev
# or start the server and open the app in a new browser tab
npm run dev -- --open
Building
To create a production version of your app:
npm run build
You can preview the production build with npm run preview.
To deploy your app, you may need to install an adapter for your target environment.