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Palette Webpack Plugin

MIT License Version Total Downloads Build Status Follow Roots

Automatic Color Palette Generation
Built with ❤️

Official Website | Donate

Supporting

Palette Webpack Plugin is an open source project and completely free to use.

However, the amount of effort needed to maintain and develop new features and products within the Roots ecosystem is not sustainable without proper financial backing. If you have the capability, please consider donating using the links below:

Donate via Patreon Donate via PayPal

Overview

Palette Webpack Plugin allows you to generate a JSON file during the build process containing your color palette from existing Sass maps and/or Tailwind.

While we hope someone may find this useful for other purposes, this plugin and it's output format were specifically built for handling WordPress' Gutenberg editor-color-palette theme support feature.

Features

  • Built to take the headache out of maintaining the WordPress editor palette.
  • Merge, filter, and sort Sass color maps and your Tailwind theme colors with a configurable priority.
  • Uses computer vision algorithms to detect and deprioritize grayscale colors to the bottom of the list.
  • Gracefully loads Sass and/or Tailwind support as needed.

Getting Started

To begin, you'll need to install palette-webpack-plugin:

$ yarn add palette-webpack-plugin -D

Then add the plugin to your webpack config. Here is an example containing the default values:

webpack.config.js

const PalettePlugin = require('palette-webpack-plugin');

module.exports = {
  plugins: [
    new PalettePlugin({
      output: 'palette.json',
      blacklist: ['transparent', 'inherit'],
      priority: 'tailwind',
      pretty: false,
      tailwind: {
        config: './tailwind.config.js',
        shades: false,
        path: 'colors',
      },
      sass: {
        path: 'resources/assets/styles/config',
        files: ['variables.scss'],
        variables: ['colors'],
      },
    }),
  ],
};

If you are using Laravel Mix, you may use the Mix helper like so:

webpack.mix.js

const mix = require('laravel-mix');
require('palette-webpack-plugin/src/mix');

mix.palette({ ... });

Usage

The plugin's signature:

webpack.config.js

module.exports = {
  plugins: [new PalettePlugin(options)],
};

webpack.mix.js

mix.palette(options);

Options

Name Type Default Description
output {String} 'palette.json' The filename and path relative to the public path.
blacklist {Array} ['transparent, 'inherit'] Globs to ignore colors.
priority {String} 'tailwind' Priority when merging non-unique colors while using both Tailwind and Sass.
pretty {Boolean} false Use pretty formatting when writing the JSON file.
tailwind {Object} { ... } Set Tailwind options. (See below)
tailwind.config {String} './tailwind.config.js' Path to the Tailwind configuration file relative to the project root path.
tailwind.shades {Object|Array|Boolean} false While set to true, every color shade (100-900) will be generated. When set to false, only 500 will be used. Optionally, you may define either an array of shades as strings ['50', '100', '500'] or an object containing shade labels {50: 'Lightest', 100: 'Lighter', 500: ''}.
tailwind.path {String} 'colors' Path to Tailwind config values for palette colors in dot notation. Uses Tailwind's color palette theme('colors') per default.
sass {Object} { ... } Set Sass options. (See below)
sass.path {String} 'resources/assets/styles/config' Path to Sass variable files relative to the project root path.
sass.files {Array} ['variables.scss'] An array of files to search for the defined Sass variables.
sass.variables {Array} ['colors'] An array of Sass variables (with or without $) to use for the color palette.

WordPress

Vanilla WordPress

The general idea is to file_get_contents() and json_decode() the palette and pass it to add_theme_support('editor-color-palette', $palette).

Here is an example of doing that:

/**
 * Register the initial theme setup.
 *
 * @return void
 */
add_action('after_setup_theme', function () {
    /**
     * Enable theme color palette support
     * @link https://developer.wordpress.org/block-editor/developers/themes/theme-support/#block-color-palettes
     */
    add_theme_support('editor-color-palette', json_decode(file_get_contents('path/to/palette.json'), true));
}, 20);

Sage 10

When using Sage 10, you can take advantage of the asset() helper to fetch the palette. A good place for doing this would be in setup.php with the other add_theme_support() options.

/**
 * Enable theme color palette support
 * @link https://developer.wordpress.org/block-editor/developers/themes/theme-support/#block-color-palettes
 */
add_theme_support('editor-color-palette', json_decode(asset('palette.json')->contents(), true));

Output Example

$black: '#111';

$colors: (
  'red': '#f54242',
  'black': $black,
  'not-actually-black': '#42f596',
  'random-gray': '#858c89',
  'white': '#fff',
  'blue': '#4287f5',
  'orange': '#f5b342',
);

would be transformed to:

[
  { "name": "Blue", "slug": "blue", "color": "#4287f5" },
  {
    "name": "Not Actually Black",
    "slug": "not-actually-black",
    "color": "#42f596"
  },
  { "name": "Orange", "slug": "orange", "color": "#f5b342" },
  { "name": "Red", "slug": "red", "color": "#f54242" },
  { "name": "Black", "slug": "black", "color": "#111" },
  { "name": "Random Gray", "slug": "random-gray", "color": "#858c89" },
  { "name": "White", "slug": "white", "color": "#fff" }
]

Contributing

Contributions are welcome from everyone. We have contributing guidelines to help you get started.

Todo

  • Add tests.
  • Split into components.
  • Convert to TypeScript?

Community

Keep track of development and community news.

License

Palette Webpack Plugin is provided under the MIT License.

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Generate a JSON file containing your color palette from existing Sass maps and/or Tailwind.

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