Examine source code of Feyenoord

{
  "theme": {
    "images": {
      "theme_frame": "mooi1.JPG"
    },
    "colors": {
      "frame": "#ff0505",
      "tab_background_text": "#fcfcfc"
    }
  },
  "version": "2.0",
  "name": "Feyenoord",
  "manifest_version": 2,
  "description": "Soccer club"
}