Examine source code of SCC MyWidget

{
  "manifest_version": 3,
  "name": "SCC MyWidget",
  "description": "SCC MyWidget, votre support dans votre navigateur",
  "version": "3.0.1",
  "browser_specific_settings": {
    "gecko": {
      "id": "{5c1c23d1-5854-483c-8846-0d87c36bf26f}",
      "strict_min_version": "58.0"
    }
  },
  "action": {
    "default_icon": {
      "19": "static/images/scc-logo.png",
      "38": "static/images/scc-logo.png"
    },
    "default_title": "SCC MyWidget",
    "default_popup": "index.html"
  },
  "icons": {
    "16": "static/images/scc_logo_16.png",
    "32": "static/images/scc_logo_32.png",
    "48": "static/images/scc_logo_48.png",
    "128": "static/images/scc_logo_128.png"
  },
  "options_ui": {
    "page": "options.html"
  }
}