Examine source code of Japanese_Koi

{
  "name": "Japanese_Koi",
  "manifest_version": 2,
  "version": "6.0",
  "theme": {
    "images": {
      "theme_frame": "1B.jpg"
    },
    "colors": {
      "frame": "rgba(191, 186, 146, 1)",
      "tab_background_text": "rgba(255, 255, 255, 1)",
      "toolbar": "rgba(181, 177, 134, 0)",
      "bookmark_text": "rgba(255, 255, 255, 1)",
      "toolbar_field": "rgba(194, 190, 148, 0.17)",
      "toolbar_field_text": "rgba(255, 255, 255, 1)",
      "tab_line": "rgba(0, 0, 0, 1)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{bbdee03b-ec20-47ec-a7c4-6178f72b37ea}"
    }
  }
}