Examine source code of URL Complete Me

{
  "name": "URL Complete Me",
  "description": "Reads the content of your copy/paste buffer and inserts it into a configurable URL, then opens that URL in a new tab.",
  "manifest_version": 2,
  "version": "1.0",
  "homepage_url": "https://github.com/megallo/url-complete-me",
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "browser_action": {
    "default_icon": "icons/dragon-48.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "url-complete-me@github.com",
      "strict_min_version": "57.0"
    }
  },
  "icons": {
    "48": "icons/dragon-48.png",
    "96": "icons/dragon-96.png"
  },
  "options_ui": {
    "page": "options.html",
    "browser_style": true
  },
  "permissions": [
    "clipboardRead",
    "storage"
  ]
}