Examine source code of Japanese Maple 01

{
  "theme": {
    "images": {
      "theme_frame": "nature_japanese_maple_header.jpg"
    },
    "colors": {
      "frame": "#ffffff",
      "tab_background_text": "#000000"
    }
  },
  "version": "2.0",
  "name": "Japanese Maple 01",
  "manifest_version": 2,
  "description": "as usual, it is not my art work originally. \n\nIt suppose served as the background for the SHUFFLE heroine - Kaeda Fuyou persona; but the background color is not so suit.\n\nKeyword: nature, Japanese maple"
}