Examine source code of Better Research

{
  "name": "Better Research",
  "description": "__MSG_manifestDescription__",
  "version": "0.1.29",
  "manifest_version": 2,
  "icons": {
    "16": "/imgs/icon-16.png",
    "48": "/imgs/icon-48.png",
    "128": "/imgs/icon-128.png"
  },
  "permissions": [
    "activeTab",
    "contextMenus",
    "tabs",
    "storage",
    "<all_urls>"
  ],
  "background": {
    "page": "background.html"
  },
  "default_locale": "en",
  "browser_action": {
    "default_icon": "/imgs/icon-16.png",
    "default_title": "__MSG_manifestOpenOverlay__"
  },
  "commands": {
    "show-overlay": {
      "suggested_key": {
        "default": "Ctrl+Shift+L",
        "mac": "Command+Shift+L"
      },
      "description": "__MSG_manifestOpenOverlay__"
    },
    "hide-overlay": {
      "suggested_key": {
        "default": "Ctrl+Shift+L",
        "mac": "Command+Shift+L"
      },
      "description": "__MSG_manifestCloseOverlay__"
    }
  },
  "web_accessible_resources": [
    "imgs/*.png",
    "overlay.html",
    "scOverlay.html",
    "prompt.html",
    "/js/markdownIt.js"
  ],
  "content_scripts": [
    {
      "matches": [
        "*://*/*"
      ],
      "js": [
        "js/markdownIt.js",
        "js/content.js"
      ],
      "run_at": "document_end",
      "all_frames": false
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{d7a90b97-8b55-48f9-9a14-11fdfcbf076a}"
    }
  }
}