Examine source code of twice kpop

{
  "name": "nayeon twice",
  "manifest_version": 2,
  "version": "1.0",
  "theme": {
    "images": {
      "theme_frame": "50049e4ad2acd37cf435f84e184aa031.jpg"
    },
    "colors": {
      "frame": "rgba(232, 233, 235, 1)",
      "tab_background_text": "rgba(0, 0, 0, 1)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{8c9cc22c-44e0-46e4-86ff-c1d8d7b0a2cc}"
    }
  }
}