Examine source code of mario adventures theme

{
  "theme": {
    "images": {
      "theme_frame": "mariofox.jpg"
    },
    "colors": {
      "frame": "#fcf9f9",
      "tab_background_text": "#1342ed"
    }
  },
  "version": "2.0",
  "name": "mario adventures theme",
  "manifest_version": 2,
  "description": "Mario bros."
}