react-component-form/example/pages/_app.tsx

import type { AppType } from 'next/app'
import { ThemeProvider } from 'next-themes'

import '../styles/globals.css'

const MyApp: AppType = ({ Component, pageProps }) => {
  return (
    <ThemeProvider attribute='class' defaultTheme='dark'>
      <Component {...pageProps} />
    </ThemeProvider>
  )
}

export default MyApp