Examine source code of imonfire

{
  "theme": {
    "images": {
      "theme_frame": "2500-200.jpg"
    },
    "colors": {
      "frame": "#fff7f7",
      "tab_background_text": "#f21111"
    }
  },
  "version": "2.0",
  "name": "imonfire",
  "manifest_version": 2,
  "description": "Fondo negro, con llamaradas y el texto IM ON FIRE"
}