Examine source code of Contas Turbo

{
  "name": "Contas Turbo",
  "version": "3.0.0",
  "manifest_version": 2,
  "description": "Gere Links Premium com apenas 1 clique com a extensão do Contas Turbo!",
  "icons": {
    "200": "images/icon200.png"
  },
  "browser_action": {
    "default_icon": "images/icon200.png",
    "default_title": "Gerar Link Premium",
    "default_popup": "popup.html"
  },
  "permissions": [
    "tabs"
  ]
}