Examine source code of FlickrClip

{
  "manifest_version": 2,
  "name": "FlickrClip",
  "version": "0.0.5",
  "description": "Copy Flickr link to clipboard.",
  "permissions": [
    "contextMenus",
    "activeTab",
    "tabs",
    "clipboardWrite",
    "storage"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "flickrclip@apribase.net"
    }
  },
  "icons": {
    "48": "dist/images/icon.svg",
    "96": "dist/images/icon.svg"
  },
  "options_ui": {
    "page": "dist/options.html",
    "browser_style": true
  },
  "background": {
    "scripts": [
      "dist/flickrlink.js"
    ]
  }
}