Examine source code of On quiet lake.

{
  "theme": {
    "images": {
      "theme_frame": "1216-hana-leik----00699.jpg"
    },
    "colors": {
      "frame": "#cee663",
      "tab_background_text": "#000"
    }
  },
  "version": "2.0",
  "name": "On quiet lake.",
  "manifest_version": 2,
  "description": "静かな湖の上。 。"
}