Nuxt/examples/async-data/nuxt.config.js

module.exports = {
  loading: {
    color: '#4FC08D',
    failedColor: '#bf5050',
    duration: 1500
  },
  head: {
    title: 'Default title'
  },
  generate: {
    routes: [
      '/posts/1'
    ]
  }
}