Examine source code of Pronote Tools

{
  "name": "Pronote Tools",
  "version": "1.1.2",
  "description": "A few tools for Pronote",
  "permissions": [],
  "content_scripts": [
    {
      "js": [
        "injector.js"
      ],
      "matches": [
        "http://*.index-education.net/*",
        "https://*.index-education.net/*"
      ]
    }
  ],
  "web_accessible_resources": [
    "tools/autoblackmode.css",
    "tools/autodarkmode.css",
    "tools/tools.css",
    "tools/blackmode.css",
    "tools/darkmode.css",
    "tools/lightmode.css"
  ],
  "icons": {
    "16": "images/icon16.png",
    "32": "images/icon32.png",
    "48": "images/icon48.png",
    "128": "images/icon128.png"
  },
  "manifest_version": 2
}