Examine source code of onHover — Developer Toolkit

{
  "manifest_version": 3,
  "name": "onHover — Developer Toolkit",
  "short_name": "onHover",
  "version": "1.0.2",
  "description": "25+ dev tools in one click: inspect elements, pick colors, screenshots, API tester, SEO analyzer, fonts & more — no DevTools needed.",
  "homepage_url": "https://onhover.in",
  "minimum_chrome_version": "88",
  "browser_specific_settings": {
    "gecko": {
      "id": "extension@onhover.in",
      "strict_min_version": "128.0",
      "data_collection_permissions": {
        "required": [
          "websiteActivity"
        ],
        "optional": []
      }
    }
  },
  "permissions": [
    "storage",
    "unlimitedStorage",
    "activeTab",
    "tabs",
    "scripting",
    "clipboardWrite",
    "cookies",
    "browsingData",
    "tabCapture",
    "offscreen",
    "downloads",
    "debugger"
  ],
  "host_permissions": [
    "<all_urls>"
  ],
  "action": {
    "default_popup": "index.html",
    "default_title": "onHover — Developer Toolkit",
    "default_icon": {
      "16": "logo.png",
      "48": "logo.png",
      "128": "logo.png"
    }
  },
  "icons": {
    "16": "logo.png",
    "48": "logo.png",
    "128": "logo.png"
  },
  "background": {
    "service_worker": "background.js",
    "scripts": [
      "background.js"
    ]
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "modules/utils.js",
        "modules/assets.js",
        "modules/inspector.js",
        "modules/seo.js",
        "modules/screenshot.js",
        "modules/colorToolbar.js",
        "modules/captureToolbar.js",
        "modules/perf.js",
        "modules/consolepanel.js",
        "content.js"
      ],
      "run_at": "document_idle",
      "all_frames": true
    },
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "modules/sitemap.js",
        "modules/json.js"
      ],
      "run_at": "document_idle"
    }
  ],
  "web_accessible_resources": [
    {
      "resources": [
        "responsive.html",
        "sitemap-formatter.html",
        "sitemap-formatter.js",
        "json-formatter.html",
        "json-formatter.js",
        "src/insights-report.html",
        "src/devtools.html",
        "fonts/*"
      ],
      "matches": [
        "<all_urls>"
      ]
    }
  ]
}