Examine source code of Trovocator

{
  "manifest_version": 2,
  "name": "Trovocator",
  "version": "0.1",
  "description": " Trovocator is experimental addon that helps to support emoji in Trovo chat. ",
  "icons": {
    "48": "icons/logo-48.png",
    "64": "icons/logo-64.png"
  },
  "content_scripts": [
    {
      "matches": [
        "https://trovo.live/drKiray"
      ],
      "js": [
        "main.js"
      ]
    }
  ],
  "web_accessible_resources": [
    "smiles/*.png"
  ]
}