Examine source code of Bob Esponja Rock

{
  "theme": {
    "images": {
      "theme_frame": "Persona-Firefox---Bob-Esponja-Header.jpg"
    },
    "colors": {
      "frame": "#121212",
      "tab_background_text": "#f7f7f7"
    }
  },
  "version": "2.0",
  "name": "Bob Esponja Rock",
  "manifest_version": 2,
  "description": "Persona Bob Esponja Rock'n Roll"
}