Examine source code of Fangraphs Search

{
  "manifest_version": 2,
  "name": "Fangraphs Search",
  "version": "1.3resigned1",
  "author": "Zachary Kellicutt",
  "homepage_url": "https://github.com/zkello/fangraphs-search",
  "description": "Search Fangraphs from the address bar or by right clicking",
  "omnibox": {
    "keyword": "fg"
  },
  "web_accessible_resources": [
    "settings.html"
  ],
  "permissions": [
    "contextMenus",
    "http://www.fangraphs.com/*",
    "https://www.fangraphs.com/*"
  ],
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "icons": {
    "16": "icon16.png",
    "32": "icon32.png",
    "48": "icon48.png",
    "128": "icon128.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{c91b0aee-0a15-4598-8a71-3f5c3564dbc0}"
    }
  }
}