Examine source code of Kanata&Yakiko

{
  "theme": {
    "images": {
      "theme_frame": "kana01-tile331.jpg"
    },
    "colors": {
      "frame": "#aed9b6",
      "tab_background_text": "#88ba75"
    }
  },
  "version": "2.0",
  "name": "Kanata&Yakiko",
  "manifest_version": 2,
  "description": "starry sky"
}