Examine source code of Curious Owlets

{
  "name": "Curious Owlets",
  "manifest_version": 2,
  "version": "1.0",
  "theme": {
    "images": {
      "theme_frame": "1.jpg"
    },
    "colors": {
      "frame": "rgba(229, 230, 232, 1)",
      "tab_background_text": "rgba(0, 0, 0, 1)",
      "toolbar": "rgba(184, 173, 173, 1)",
      "bookmark_text": "rgba(255, 209, 209, 1)",
      "toolbar_field_text": "rgba(74, 68, 68, 1)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{0dcfc496-e3ed-4e01-a317-da28c0317e0c}"
    }
  }
}