Multi-theme HTML

JavaScript

import {highlight} from '@lumis-sh/lumis'
import {htmlMultiThemes} from '@lumis-sh/lumis/formatters'
import javascript from '@lumis-sh/lumis/langs/javascript'
import githubLight from '@lumis-sh/themes/github_light'
import githubDark from '@lumis-sh/themes/github_dark'

const html = await highlight(
  'const x = 1',
  htmlMultiThemes({
    language: javascript,
    themes: {light: githubLight, dark: githubDark},
    defaultTheme: 'light-dark()',
  })
)

CLI

lumis highlight index.js \
  --formatter html-multi-themes \
  --themes light:github_light \
  --themes dark:github_dark \
  --default-theme "light-dark()"

See HTML Multi-Themes for the full option set.