This plugin can extract theme color styles from all the outputed css files (such as element-ui theme colors), and make a 'theme-colors.css' file which only contains color styles. At runtime in your web page, the client part will help you to download this css file, and then replace the colors into new customized colors dynamicly. Preview: https://hzsrc-vue-webpack4-elementui.netlify.com/themeColor.html http://test.hz300.com/webpack4/#/theme Implementation (Chinese): https://segmentfault.com/a/1190000016061608 # Install npm i -D webpack-theme-color-replacer # Config for webpack ````js const ThemeColorReplacer = require('webpack-theme-color-replacer') module.exports = { // ..... other config plugins: [ new ThemeColorReplacer({ matchColors: ['#ed4040', '#4b0', '255,80,80', '27, 92.531%, 52.745%'], // colors array for extracting css file, support rgb and hsl. fileName: 'css/theme-colors-[contenthash:8].css', //optional. output css file name, suport [contenthash] and [hash]. // resolveCss(resultCss) { // optional. Resolve result css code as you wish. // return resultCss.replace(/#ccc/g, '#eee') // }, externalCssFiles: ['./node_modules/element-ui/lib/theme-chalk/index.css'], // optional, String or string array. Set external css files (such as cdn css) to extract colors. // changeSelector(selector, util) { // optional, Funciton. Changing css selectors, in order to raise css priority, to resolve lazy-loading problems. // return util.changeEach(selector, '.el-button--default') // }, injectCss: false, // optional. Inject css text into js file, no need to download `theme-colors-xxx.css` any more. isJsUgly: process.env.NODE_ENV !== 'development', // optional. Set to `true` if your js is uglified. Default is set by process.env.NODE_ENV. }) ], } ```` If you use customized runtime-chunk filename, it should contains a string `manifest.`, like this: ````js optimization: { runtimeChunk: { name: entrypoint => 'manifest.' + entrypoint.name, }, } ```` You can view this sample: https://github.com/hzsrc/vue-element-ui-scaffold-webpack4/blob/master/build/webpack.base.conf.js --- * Other build tool(not webpack) Otherwise, if you use other build tool(like gulp) but not webpack, you can use this plugin by nodejs: ````js var nodeRun = require('webpack-theme-color-replacer/src/nodeRun'); var {code, outFile} = nodeRun({ src: 'src/css/**/*.css', // source css files. string or string array, as `glob`. matchColors: ['#ed4040', '#4b0', '255,80,80', '27, 92.531%, 52.745%'], fileName: 'css/theme-colors-[contenthash:8].css', // ... }) // do sth with outFile ```` See this sample: https://github.com/hzsrc/webpack-theme-color-replacer/blob/master/src/nodeRun.js # Usage in your runtime web page Like this: ````js import client from 'webpack-theme-color-replacer/client' // change theme colors at runtime. export function changeColor() { var options = { newColors: ['#f67a17', '#f67a17', '160,20,255', '285,78.182%,56.863%'], // new colors array, one-to-one corresponde with `matchColors` // appendToEl: 'head', //optional. The element selector for appending child with `` to ``, not to `` any more, in order to resolve most priority problems in lazy loading pages. Thanks to [iota9star](https://github.com/iota9star) : [15](https://github.com/hzsrc/webpack-theme-color-replacer/issues/15) ### 1.3.4 * Support running without webpack, just with nodejs, such as like `gulp`. ### 1.3.12 * HotModuleReplacement performance improved. ### 1.3.14 * hsl(a) colors format supported. ### 1.3.25 * Add `themeUtil` tool which can make color series both at [webpack-config](https://github.com/hzsrc/vue-element-ui-scaffold-webpack4/blob/master/build/webpack.base.conf.js) and [runtime](https://github.com/hzsrc/vue-element-ui-scaffold-webpack4/blob/master/src/js/themeColorClient.js). * `getElementUISeries` returns all 1-9 darken colors. ### 1.4.1 * Replace `__theme_COLOR_cfg` to a random variable name, remove `__theme_COLOR_css` variable, to resolve name collision problems: https://github.com/hzsrc/webpack-theme-color-replacer/pull/103/ * Add a build option: `configVar`, to set your variable name. * Note: need to use `webpack.DefinePlugin` in webpack. ### 1.4.2 Add `injectToHtml` option. ### 1.4.3 * Add `client/client.browser.js` for browser using like ``, with a global var `tcrClient`. * Add two colors to `getElementUISeries` ### 1.4.5 * No warnings in webpack 5. Thanks to [linpengteng](https://github.com/hzsrc/webpack-theme-color-replacer/pull/114).