Examine source code of Containacious

{
  "manifest_version": 2,
  "name": "Containacious",
  "version": "1.0.0",
  "description": "Tenaciously keeps your tabs in the right container",
  "author": "Dejan Cabrilo",
  "permissions": [
    "tabs",
    "contextualIdentities",
    "cookies",
    "storage",
    "<all_urls>"
  ],
  "background": {
    "scripts": [
      "background.js"
    ],
    "persistent": true
  },
  "icons": {
    "48": "icons/icon.svg",
    "96": "icons/icon.svg"
  },
  "browser_action": {
    "default_icon": "icons/icon.svg",
    "default_title": "Containacious"
  },
  "options_ui": {
    "page": "options.html",
    "browser_style": true
  },
  "homepage_url": "https://github.com/cabrilo/containacious",
  "browser_specific_settings": {
    "gecko": {
      "id": "containacious@cabrilo.github.io",
      "strict_min_version": "58.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  }
}