Examine source code of Union Berlin

{
  "theme": {
    "images": {
      "theme_frame": "FCU.jpg"
    },
    "colors": {
      "frame": "#6b0505",
      "tab_background_text": "#f2eaea"
    }
  },
  "version": "2.0",
  "name": "Union Berlin",
  "manifest_version": 2,
  "description": "Union Berlin"
}