Examine source code of UX Enhancer for GitLab

{
  "name": "UX Enhancer for GitLab",
  "version": "4.9.2",
  "description": "A browser extension that enhances your GitLab experience.",
  "manifest_version": 3,
  "author": "Sven Depondt",
  "icons": {
    "16": "images/logo-16.png",
    "48": "images/logo-48.png",
    "128": "images/logo-128.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "gitlab-enhancer@example.com",
      "strict_min_version": "58.0"
    }
  },
  "permissions": [
    "activeTab",
    "alarms",
    "notifications",
    "storage"
  ],
  "optional_permissions": [
    "scripting",
    "webRequest",
    "http://*/*",
    "https://*/*"
  ],
  "content_scripts": [
    {
      "matches": [
        "https://*/*"
      ],
      "js": [
        "content.js"
      ]
    }
  ],
  "background": {
    "scripts": [
      "background.js"
    ],
    "type": "module"
  },
  "web_accessible_resources": [
    {
      "resources": [
        "assets/main.js",
        "assets/main.css",
        "assets/SvgLogo.js",
        "assets/SvgLogo.*.js"
      ],
      "matches": [
        "https://*/*"
      ]
    }
  ],
  "action": {
    "default_popup": "popup.html",
    "default_title": "UX Enhancer for GitLab",
    "default_icon": {
      "16": "images/logo-16.png",
      "48": "images/logo-48.png",
      "128": "images/logo-128.png"
    }
  }
}