Examine source code of ScryBuy

{
  "manifest_version": 2,
  "name": "ScryBuy",
  "version": "2.3.1",
  "description": "Adds and hides purchase links on Scryfall",
  "browser_specific_settings": {
    "gecko": {
      "id": "scry-kingdom@zabenn.github.io",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  },
  "icons": {
    "48": "icons/icon.svg",
    "96": "icons/icon.svg",
    "128": "icons/icon.svg"
  },
  "permissions": [
    "storage",
    "https://scrybuy-api.onrender.com/*"
  ],
  "background": {
    "scripts": [
      "background.js"
    ],
    "persistent": true
  },
  "content_scripts": [
    {
      "matches": [
        "https://scryfall.com/card/*",
        "https://scryfall.com/search*",
        "https://scryfall.com/sets/*"
      ],
      "js": [
        "contentScript.js"
      ],
      "css": [
        "index.css"
      ],
      "run_at": "document_start"
    }
  ],
  "browser_action": {
    "default_title": "ScryBuy",
    "default_area": "navbar",
    "default_popup": "popup.html",
    "default_icon": "icons/icon.svg",
    "theme_icons": [
      {
        "light": "icons/icon-white.svg",
        "dark": "icons/icon-black.svg",
        "size": 32
      }
    ]
  }
}