Examine source code of Ruliweb Board Supporter

{
  "background": {
    "persistent": true,
    "scripts": [
      "js/background.js"
    ]
  },
  "browser_action": {
    "default_icon": {
      "16": "images/ruliweb16.png",
      "48": "images/ruliweb48.png",
      "128": "images/ruliweb128.png"
    },
    "default_title": "Ruliweb Board Support"
  },
  "content_scripts": [
    {
      "js": [
        "js/board_support.js"
      ],
      "matches": [
        "*://*.ruliweb.com/*"
      ],
      "run_at": "document_start"
    }
  ],
  "description": "Useful functions for ruliweb board",
  "icons": {
    "16": "images/ruliweb16.png",
    "48": "images/ruliweb48.png",
    "128": "images/ruliweb128.png"
  },
  "manifest_version": 2,
  "name": "Ruliweb Board Support",
  "options_ui": {
    "browser_style": false,
    "open_in_tab": false,
    "page": "html/options.html"
  },
  "permissions": [
    "activeTab",
    "storage",
    "menus",
    "downloads"
  ],
  "version": "1.0.1"
}