Examine source code of GMGN+

{
  "manifest_version": 2,
  "name": "GMGN+",
  "version": "0.3.1",
  "description": "GMGN Solana helper",
  "browser_specific_settings": {
    "gecko": {
      "id": "gmgn-plus@local",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  },
  "icons": {
    "16": "icons/16.png",
    "48": "icons/48.png",
    "128": "icons/128.png"
  },
  "browser_action": {
    "default_title": "GMGN+",
    "default_popup": "src/popup/popup.html"
  },
  "background": {
    "scripts": [
      "src/background/worker.js"
    ],
    "persistent": false
  },
  "permissions": [
    "storage",
    "<all_urls>"
  ],
  "content_scripts": [
    {
      "matches": [
        "*://gmgn.ai/*"
      ],
      "js": [
        "src/content/inject.js"
      ],
      "css": [
        "src/styles/inject.css"
      ],
      "run_at": "document_idle"
    }
  ]
}