Previously, the color scheme information was not passed on to the
browser. This could result in scrollbars being light, when the dark
theme is in use.
Now, `:root { color-scheme: $color-scheme; }` is specified.
This will ensure the color theme is enforced.
Ref: https://developer.mozilla.org/en-US/docs/Web/CSS/color-scheme
This PR replaces the default light code highlighting theme with Atom's One Light theme colors. This should provide more visual similarity with our dark theme, and as a byproduct, fix some of the contrast issues from our current light theme.
In addition (different from the original purpose of this PR), this also moves theme variables from `variables.scss` to `light.scss`, which always gets loaded anyways.
To test, compare the [deploy preview's kitchen sink Python code](https://deploy-preview-1166--just-the-docs.netlify.app/docs/index-test/#more-code) to the current [`main` branch's code](https://just-the-docs.github.io/just-the-docs/docs/index-test/#more-code); you can also use the "Preview dark color scheme" button to see OneDarkJekyll in action.
Users can opt-in to the old theme with `legacy_light`. I've documented this in the "customization" page.
Closes#679.
## implementation
Feel free to skip this part.
To do this, I:
- forked [mgyongyosi/OneDarkJekyll](https://github.com/mgyongyosi/OneDarkJekyll) to our own organization, [OneLightJekyll](https://github.com/just-the-docs/OneLightJekyll)
- updated the code to be slightly more robust (e.g. not require installing to global path)
- replaced the `colors.less` with the one pulled from Atom's [one-light-syntax](https://github.com/atom/atom/tree/master/packages/one-light-syntax)
- updated the license notice to also include GitHub's work in Atom
- regenerated the file
- plopped it in our current theme code
## next steps
This is related to #1100. I wanted to make this PR easier to review, so I won't implement that just yet; once we merge this, I can push that PR through. It's also related to #1173; in a comment below, I've also outlined some potential future work.
After we merge this, I'll trigger a release soon. I think this next minor bump can be focused on color schemes, e.g. dark theme, theme switching, and some bugfixes.
When customizing `$code-background-color` in `dark.scss`, the result is a multi-color background. (see https://github.com/just-the-docs/just-the-docs/issues/1121#issuecomment-1374976843)
This makes OneDarkJekyll code block colors the same as the specified `$code-background-color`, and uses the `$default-body-color` as the line number text color, which can otherwise be invisible due to the default being black and is hard to see on a very dark code block background.
This is a catch-all PR that modernizes and updates our Stylelint config, and resolves all open issues. This is a pretty big change - so I want to update all of our related dependencies in lockstep.
In particular, this PR
- [x] updates stylelint to `v14`
- [x] adds in the standard stylelint config for SCSS (`stylelint-config-standard-scss`)
- [x] swaps out `stylelint-config-prettier` for `stylelint-config-prettier-scss`
- [x] ~~properly update `@primer`-related plugins:~~ completely remove `primer` from our configuration
- [x] autofix, manually resolve, or disable all newly-introduced lint errors; **I've avoided manually resolving errors that would be a behavioural change**
- [x] re-runs `npm run format`
See the "next steps" section on some extra thoughts on disabling errors.
(implicitly, I'm also using node 16/the new package-lock format).
### disabling rules and next steps
I've introduced several new disabled rules. Let me quickly explain what's going on; there are two categories of rules I've disabled:
1. rules that were temporary disables; they were frequent enough that I couldn't manually resolve them, but should be simple. **I plan on opening issues to re-enable each of these rules**, just after this PR
- `declaration-block-no-redundant-longhand-properties`: this is just tedious and error-prone
- `no-descending-specificity`: this one is tricky since it could have impacts on the cascade (though that seems unlikely)
- `scss/no-global-function-names`: I think we need to [import map and then use `map.get`](https://stackoverflow.com/questions/64210390/sass-map-get-doesnt-work-map-get-does-what-gives), but I'll leave this as out of scope for now
2. rules that are long-term disables; due to the SASS-based nature of our theme, I think we'll keep these in limbo
- `alpha-value-notation` causes problems with SASS using the `modern` syntax - literals like `50%` are not properly interpolated, and they cause formatting issues on the site
- `color-function-notation` also causes problems with SASS, but in this case the `modern` syntax breaks SASS compilation; we're not alone (see this [SO post](https://stackoverflow.com/questions/71805735/error-function-rgb-is-missing-argument-green-in-sass)).
In addition, we have many inline `stylelint-disable` comments. I'd open a separate issue to audit them, especially since I think some disables are unnecessary.
### on Primer
**note: there hasn't been much other discussion, so I'm going to remove primer's stylelint config.**
If I do add `@primer/stylelint-config`, I get *a ton* of errors about now using `@primer`'s in-built SCSS variables. I imagine that we probably won't want to use these presets (though I could be wrong). In that case, I think we could either:
1. disable all of those rules
4. not use `@primer/stylelint-config`, since we're not actually using primer, and shift back to the standard SCSS config provided by Stylelint
~~Any thoughts here? I also don't have the original context as to why we do use the primer rules, perhaps @pmarsceill can chime in?~~
This PR combines (and resolves conflicts between) #448, #463, #466, #494, #495, #496, #498, and #572.
The main aim is to facilitate use of several of the implemented features _together_, when using the fork as a remote theme. It should also simplify merging the included PRs into a future release.
The branch [combination-rec-nav](https://github.com/pdmosses/just-the-docs/tree/combination-rec-nav) adds [multi-level navigation](https://github.com/pmarsceill/just-the-docs/pull/462) and (NEW:) [sibling links](https://github.com/pmarsceill/just-the-docs/pull/394) to the branch used for this PR. It includes updated [documentation for the navigation structure](https://pdmosses.github.io/just-the-docs/docs/navigation-structure/), and reorganised and extended [navigation tests](https://pdmosses.github.io/just-the-docs/tests/navigation/). The documentation and the tests can be browsed at the (temporary) [website published from the combination-rec-nav branch](https://pdmosses.github.io/just-the-docs/).
_Caveat:_ The changes to v0.3.3 in this PR and #462 have not yet been reviewed or approved, and may need updating before merging into a release of the theme. If you use a branch from a PR as a remote theme, there is a risk of such updates affecting your website. Moreover, these branches are likely to be deleted after they have been merged. To avoid such problems, you could copy the branch that you want to use to your own fork of the theme.
Co-authored-by: Matt Wang <matt@matthewwang.me>
