Examine source code of Anime Logger

{
  "manifest_version": 2,
  "name": "Anime Logger",
  "version": "2.0",
  "description": "A web extension that helps you log the anime episode you're at while on a streaming site.",
  "icons": {
    "32": "icons/icon.png",
    "120": "icons/icon-120.png"
  },
  "background": {
    "scripts": [
      "/dist/background-script.js"
    ]
  },
  "permissions": [
    "webNavigation",
    "storage",
    "unlimitedStorage",
    "downloads"
  ],
  "optional_permissions": [
    "*://*/*"
  ],
  "options_ui": {
    "page": "/dist/settings.html"
  },
  "browser_action": {
    "browser_style": true,
    "default_icon": {
      "16": "icons/icon.png",
      "32": "icons/icon.png",
      "120": "icons/icon-120.png"
    },
    "default_title": "Anime Logger",
    "default_popup": "/dist/popup.html"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{57c65d62-277d-4048-b733-0e48bdbcaabd}"
    }
  }
}