Examine source code of Signtech

{
  "theme": {
    "images": {
      "theme_frame": "Signtech.jpg"
    },
    "colors": {
      "frame": "#044510",
      "tab_background_text": "#edeaea"
    }
  },
  "version": "2.0",
  "name": "Signtech",
  "manifest_version": 2,
  "description": "Un justo signo de tecnologia lo merece tu pc, laptop, mac windows, tu aparato lo espera y tu firefox lo desea"
}