Examine source code of arema the champion

{
  "theme": {
    "images": {
      "theme_frame": "header.jpg"
    },
    "colors": {
      "frame": "#f2eaea",
      "tab_background_text": "#d9d9eb"
    }
  },
  "version": "2.0",
  "name": "arema the champion",
  "manifest_version": 2,
  "description": "arema indonesia is the best team in indonesia,with the best supporter."
}