Examine source code of Ham NicoVideo

{
  "name": "Ham NicoVideo",
  "version": "0.6.1",
  "manifest_version": 2,
  "description": "hamによるniconico便利機能",
  "options_ui": {
    "page": "html/options.html",
    "open_in_tab": true
  },
  "permissions": [
    "storage",
    "tabs",
    "alarms",
    "*://*.nicovideo.jp/*"
  ],
  "background": {
    "scripts": [
      "lib/browser.js",
      "lib/parameter.js",
      "lib/browser/storage.js",
      "js/util/video_data.js",
      "background.js"
    ],
    "persistent": true
  },
  "browser_action": {
    "default_icon": "images/icon_32.png",
    "default_popup": "html/popup.html"
  },
  "content_scripts": [
    {
      "matches": [
        "*://*.nicovideo.jp/*"
      ],
      "js": [
        "lib/browser.js",
        "lib/parameter.js",
        "lib/browser/storage.js"
      ],
      "css": [
        "css/nico.css"
      ],
      "run_at": "document_start"
    },
    {
      "matches": [
        "*://*.nicovideo.jp/my/*",
        "*://*.nicovideo.jp/my?*"
      ],
      "js": [
        "js/util/watch_later.js",
        "js/video/my/created_at_new_color.js",
        "js/video/my/custom_layout.js",
        "js/video/my/side_fold.js",
        "js/video/my/filter.js",
        "js/video/my/add_watch_later.js",
        "js/video/my/highlight.js",
        "js/video/my/on_check_removed_video.js",
        "js/video/my/repo.js"
      ],
      "css": [
        "css/video/repo.css"
      ],
      "run_at": "document_start"
    },
    {
      "matches": [
        "*://*.nicovideo.jp/watch/*"
      ],
      "js": [
        "js/util/watch_later.js",
        "js/video/watch/custom_my_list.js",
        "js/video/watch/remove_watch_later.js",
        "js/video/watch/show_comment_list.js",
        "js/video/watch/watch_later_list.js",
        "js/video/watch/hold_setting.js",
        "js/video/watch/watch.js"
      ],
      "css": [
        "css/video/watch.css"
      ],
      "run_at": "document_start"
    }
  ],
  "web_accessible_resources": [
    "css/*.css",
    "html/*.html"
  ]
}