Examine source code of Partizan Grobari

{
  "theme": {
    "images": {
      "theme_frame": "partiz_header.jpg"
    },
    "colors": {
      "frame": "#476dba",
      "tab_background_text": "#121212"
    }
  },
  "version": "2.0",
  "name": "Partizan Grobari",
  "manifest_version": 2,
  "description": "For all Grobari on this planet!"
}