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Evgeni Chasnovski 64a14026d7
feat(highlight): update default color scheme
Problem: Default color scheme is suboptimal.

Solution: Start using new color scheme. Introduce new `vim` color scheme
for opt-in backward compatibility.

------
Main design ideas
- Be "Neovim branded".
- Be minimal for 256 colors with a bit more shades for true colors.
- Be accessible through high enough contrast ratios.
- Be suitable for dark and light backgrounds via exchange of dark and
  light palettes.

------
Palettes

- Have dark and light variants. Implemented through exporeted
  `NvimDark*` and `NvimLight*` hex colors.

- Palettes have 4 shades of grey for UI elements and 6 colors (red,
  yellow, green, cyan, blue, magenta).

- Actual values are computed procedurally in Oklch color space based on
  a handful of hyperparameters.

- Each color has a 256 colors variant with perceptually closest color.

------
Highlight groups

Use:

- Grey shades for general UI according to their design.

- Bold text for keywords (`Statement` highlight group). This is an
  important choice to increase accessibility for people with color
  deficiencies, as it doesn't rely on actual color.

- Green for strings, `DiffAdd` (as background), `DiagnosticOk`, and some
  minor text UI elements.

- Cyan as main syntax color, i.e. for function usage (`Function`
  highlight group), `DiffText`, `DiagnosticInfo`, and some minor text UI
  elements.

- Red to generally mean high user attention, i.e. errors; in particular
  for `ErrorMsg`, `DiffDelete`, `DiagnosticError`.

- Yellow very sparingly only with true colors to mean mild user
  attention, i.e. warnings. That is, `DiagnosticWarn` and `WarningMsg`.

- Blue very sparingly only with true colors as `DiagnosticHint` and some
  additional important syntax group (like `Identifier`).

- Magenta very carefully (if at all).

------
Notes

- To make tests work without relatively larege updates, each one is
  prepended with an equivalent of the call `:colorscheme vim`.

  Plus some tests which spawn new Neovim instances also now use 'vim'
  color scheme.

  In some cases tests are updated to fit new default color scheme.
2023-12-02 18:53:19 +02:00
.github ci: create setup action 2023-12-01 16:59:23 +01:00
cmake build: vendor libtermkey 2023-11-30 12:02:10 -06:00
cmake.config refactor: fix headers with IWYU 2023-11-28 22:23:56 +01:00
cmake.deps build: vendor libtermkey 2023-11-30 12:02:10 -06:00
cmake.packaging build!: remove neovim qt 2023-06-06 19:19:00 +02:00
contrib build(nix): update flake.lock 2023-12-02 12:50:15 +01:00
runtime feat(highlight): update default color scheme 2023-12-02 18:53:19 +02:00
scripts ci(lintcommit): fix empty and period check with multiple colons (#26312) 2023-11-30 07:31:22 +08:00
src feat(highlight): update default color scheme 2023-12-02 18:53:19 +02:00
test feat(highlight): update default color scheme 2023-12-02 18:53:19 +02:00
.cirrus.yml ci(cirrus): use FreeBSD 13.2 (#24684) 2023-09-11 12:41:53 +08:00
.clang-format build: align .clang-format rules with uncrustify config 2023-05-28 15:39:43 +02:00
.clang-tidy build: adjust clang-tidy warning exclusion logic 2023-11-20 20:05:43 +01:00
.clangd build: disable UnusedIncludes from clangd 2023-11-28 20:22:59 +01:00
.editorconfig build(editorconfig): set indent_size to 4 for python files (#21135) 2022-11-21 06:53:29 -07:00
.git-blame-ignore-revs docs: .git-blame-ignore-revs (#20820) 2022-10-27 20:31:09 +02:00
.gitattributes docs(options): take ownership of options.txt (#24528) 2023-08-04 21:26:53 +01:00
.gitignore feat: add .luarc.json (#24592) 2023-08-07 16:27:53 +01:00
.luacheckrc feat(lua-types): types for vim.api.* (#24523) 2023-08-01 14:20:44 +01:00
.luacov
.luarc.json fix(luarc.json): ignore test directory to save memory 2023-08-23 14:25:36 +01:00
.mailmap docs: update .mailmap (#20086) 2022-09-06 08:57:03 +02:00
.stylua.toml refactor(lua): reformat with stylua 0.14.0 (#19264) 2022-07-07 18:27:18 +02:00
.styluaignore build: use stylua with add_glob_target 2023-11-12 20:19:10 +01:00
BACKERS.md Update backer URL 2015-11-11 19:50:33 -08:00
BSDmakefile feat(lua)!: register_keystroke_callback => on_key 2021-09-09 06:09:33 -07:00
CMakeLists.txt build: reorganize cmake files 2023-11-21 22:18:21 +01:00
CMakePresets.json build: add "ci" configure preset to reduce verbosity 2023-04-23 17:12:46 +02:00
CONTRIBUTING.md build: remove PVS 2023-11-12 21:26:39 +01:00
LICENSE.txt vim-patch:e978b4534a5e (#24697) 2023-08-13 13:25:10 +01:00
MAINTAIN.md docs: update MAINTAIN.md 2023-11-30 13:50:51 -06:00
Makefile refactor(IWYU): fix includes for highlight_group.h (#26340) 2023-12-01 09:38:04 +08:00
README.md build: remove PVS 2023-11-12 21:26:39 +01:00

Neovim

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Neovim is a project that seeks to aggressively refactor Vim in order to:

See the Introduction wiki page and Roadmap for more information.

Features

See :help nvim-features for the full list, and :help news for noteworthy changes in the latest version!

Install from package

Pre-built packages for Windows, macOS, and Linux are found on the Releases page.

Managed packages are in Homebrew, Debian, Ubuntu, Fedora, Arch Linux, Void Linux, Gentoo, and more!

Install from source

See the Building Neovim wiki page and supported platforms for details.

The build is CMake-based, but a Makefile is provided as a convenience. After installing the dependencies, run the following command.

make CMAKE_BUILD_TYPE=RelWithDebInfo
sudo make install

To install to a non-default location:

make CMAKE_BUILD_TYPE=RelWithDebInfo CMAKE_INSTALL_PREFIX=/full/path/
make install

CMake hints for inspecting the build:

  • cmake --build build --target help lists all build targets.
  • build/CMakeCache.txt (or cmake -LAH build/) contains the resolved values of all CMake variables.
  • build/compile_commands.json shows the full compiler invocations for each translation unit.

Transitioning from Vim

See :help nvim-from-vim for instructions.

Project layout

├─ cmake/           CMake utils
├─ cmake.config/    CMake defines
├─ cmake.deps/      subproject to fetch and build dependencies (optional)
├─ runtime/         plugins and docs
├─ src/nvim/        application source code (see src/nvim/README.md)
│  ├─ api/          API subsystem
│  ├─ eval/         Vimscript subsystem
│  ├─ event/        event-loop subsystem
│  ├─ generators/   code generation (pre-compilation)
│  ├─ lib/          generic data structures
│  ├─ lua/          Lua subsystem
│  ├─ msgpack_rpc/  RPC subsystem
│  ├─ os/           low-level platform code
│  └─ tui/          built-in UI
└─ test/            tests (see test/README.md)

License

Neovim contributions since b17d96 are licensed under the Apache 2.0 license, except for contributions copied from Vim (identified by the vim-patch token). See LICENSE for details.

Vim is Charityware.  You can use and copy it as much as you like, but you are
encouraged to make a donation for needy children in Uganda.  Please see the
kcc section of the vim docs or visit the ICCF web site, available at these URLs:

        https://iccf-holland.org/
        https://www.vim.org/iccf/
        https://www.iccf.nl/

You can also sponsor the development of Vim.  Vim sponsors can vote for
features.  The money goes to Uganda anyway.