Examine source code of re:DeSign myGes

{
  "manifest_version": 3,
  "name": "re:DeSign myGes",
  "version": "1.13",
  "description": "Redesign the myges website",
  "icons": {
    "48": "./images/icone.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "M78stormtrooper@laposte.net",
      "strict_min_version": "109.0"
    },
    "gecko_android": {
      "strict_min_version": "113.0"
    }
  },
  "content_scripts": [
    {
      "matches": [
        "https://myges.fr/*"
      ],
      "js": [
        "main.js",
        "js/injectCSS.js",
        "js/functions.js",
        "js/reworkFunctions.js",
        "CSS/eventRedesign.js",
        "CSS/heavyRedesign.js",
        "CSS/normalRedesign.js",
        "CSS/darkModeRedesign.js"
      ]
    }
  ],
  "permissions": [
    "tabs",
    "storage",
    "activeTab"
  ],
  "host_permissions": [
    "https://myges.fr/*"
  ],
  "background": {
    "scripts": [
      "js/background.js"
    ]
  },
  "action": {
    "default_icon": "./images/icone.png",
    "default_title": "re:DeSign myGes",
    "default_popup": "popup.html"
  },
  "content_security_policy": {
    "extension_pages": "script-src 'self'"
  }
}