Examine source code of Flow away.01

{
  "theme": {
    "images": {
      "theme_frame": "620up-sawagukumo---0000-sy.jpg"
    },
    "colors": {
      "frame": "#eff0ce",
      "tab_background_text": "#000"
    }
  },
  "version": "2.0",
  "name": "Flow away.01",
  "manifest_version": 2,
  "description": "流れ去りゆく。"
}