Examine source code of Dropbox Paper Plus

{
  "manifest_version": 2,
  "name": "Dropbox Paper Plus",
  "version": "1.1resigned1",
  "description": "Dropbox Paper on steroids",
  "icons": {
    "48": "icons/logo.png",
    "96": "icons/logo.png"
  },
  "permissions": [
    "https://*/",
    "http://*/"
  ],
  "web_accessible_resources": [
    "components/timer/assets/*.wav"
  ],
  "content_scripts": [
    {
      "matches": [
        "*://*.paper.dropbox.com/*"
      ],
      "js": [
        "bootstrap.js",
        "style.js",
        "libs/libs.js",
        "libs/aes.js",
        "components/popup.js",
        "components/encryption.js",
        "components/grammar.js",
        "components/ui-modifications.js",
        "components/bookmarks.js",
        "components/timer/timer.js",
        "components/sidemenu.js",
        "components/shortcuts.js",
        "script.js"
      ]
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{bd3f314e-6643-4b24-bc7c-a97035d0a5f4}"
    }
  }
}