Examine source code of GeekLens

{
  "name": "GeekLens",
  "description": "Enhances Geekbench CPU benchmark results with instruction set information",
  "version": "0.3.0",
  "manifest_version": 2,
  "permissions": [
    "activeTab",
    "storage"
  ],
  "icons": {
    "16": "icon/16.png",
    "32": "icon/32.png",
    "48": "icon/48.png",
    "96": "icon/96.png",
    "128": "icon/128.png"
  },
  "browser_action": {
    "default_popup": "src/popup.html"
  },
  "background": {
    "scripts": [
      "src/background.js"
    ]
  },
  "content_scripts": [
    {
      "matches": [
        "*://browser.geekbench.com/v6/cpu/*"
      ],
      "exclude_matches": [
        "*://browser.geekbench.com/v6/cpu/compare/*"
      ],
      "js": [
        "src/content/singleResultPage.js"
      ],
      "css": [
        "style.css"
      ]
    },
    {
      "matches": [
        "*://browser.geekbench.com/v6/cpu/compare/*"
      ],
      "js": [
        "src/content/comparisonPage.js"
      ],
      "css": [
        "style.css"
      ]
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{a7334511-e94e-4f9a-b808-86dc8d92748b}"
    }
  }
}