Examine source code of Container Context

{
  "manifest_version": 2,
  "name": "Container Context",
  "version": "1.1",
  "description": "This extension will allow you to set a current container for all new tabs opened in the browser. It only effects new blank tabs, but if you are working within a container, new tabs already open in that container. If you have default containers set for a site, it wont overwrite them.",
  "icons": {
    "48": "icons/cancel.svg"
  },
  "permissions": [
    "contextualIdentities",
    "cookies",
    "theme",
    "storage",
    "management",
    "tabs"
  ],
  "background": {
    "scripts": [
      "default-containers.js"
    ]
  },
  "browser_action": {
    "default_icon": {
      "32": "icons/cancel.svg"
    },
    "default_title": "Default Container Context",
    "default_popup": "popup/listicons.html"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "jdc-container-context@joshchavez.dev"
    }
  }
}