Examine source code of happy tunya

{
  "name": "1668136805748",
  "manifest_version": 2,
  "version": "1.0",
  "theme": {
    "images": {
      "theme_frame": "1668136805748.png"
    },
    "colors": {
      "frame": "rgba(0, 85, 255, 1)",
      "tab_background_text": "rgba(0, 0, 0, 1)",
      "toolbar": "rgba(255, 179, 0, 1)",
      "toolbar_field": "rgba(255, 213, 0, 1)",
      "tab_line": "rgba(255, 0, 0, 1)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{35718f20-9a9b-477a-b693-a04675c4e8b1}"
    }
  }
}