Examine source code of Eklegu!

{
  "manifest_version": 2,
  "name": "Eklegu!",
  "description": "Esperanto/English word-search tool",
  "version": "1.5resigned1",
  "icons": {
    "16": "/icons/green_star-16.png",
    "36": "/icons/green_star-36.png",
    "48": "/icons/green_star-48.png",
    "96": "/icons/green_star-96.png",
    "128": "/icons/green_star-128.png"
  },
  "permissions": [
    "tabs",
    "webNavigation",
    "*://*/*",
    "file:///*/*"
  ],
  "background": {
    "scripts": [
      "/lib/wordSearch.js",
      "background.js"
    ]
  },
  "web_accessible_resources": [
    "vortaro/endingDefs.json",
    "vortaro/espdic.json",
    "vortaro/prefixDefs.json",
    "vortaro/suffixDefs.json"
  ],
  "browser_action": {
    "default_icon": "/icons/green_star-48.png",
    "default_title": "Eklegu!"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{800543f0-235a-4eff-8881-a633a7f3c8ba}"
    }
  }
}