Examine source code of Irregular Verbs List

{
  "manifest_version": 3,
  "name": "Irregular Verbs List",
  "version": "0.2.0",
  "action": {
    "default_icon": {
      "32": "icons/icon-32.png"
    },
    "default_title": "Irregular Verbs List",
    "default_popup": "popup.html"
  },
  "permissions": [],
  "icons": {
    "32": "icons/icon-32.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{ce1742e1-b5e9-49a9-83f1-05638280c956}",
      "strict_min_version": "50.0"
    }
  }
}