Examine source code of coronavirus remover

{
  "manifest_version": 2,
  "name": "coronavirus remover",
  "version": "0.10.0",
  "description": "removes coronavirus text all webpages matching coronavirus.",
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "script.js"
      ],
      "css": [
        "style.css"
      ]
    }
  ]
}