element-plus/build/plugins/size-reporter.ts

import { cyan, bold, yellow, green } from 'chalk'
import { command } from '../utils/log'
import type { FileSizeReporter } from 'rollup-plugin-filesize'

export const reporter: FileSizeReporter = (opt, outputOptions, info) => {
  return command(
    `${cyan(bold(info.fileName))}: bundle size ${yellow(
      info.bundleSize
    )} -> minified ${green(info.minSize)}`
  )
}