Examine source code of Leave a desired tile.02

{
  "theme": {
    "images": {
      "theme_frame": "a1223--big-tail-awagreen.jpg"
    },
    "colors": {
      "frame": "#f7f6ed",
      "tab_background_text": "#ffffff"
    }
  },
  "version": "2.0",
  "name": "Leave a desired tile.02",
  "manifest_version": 2,
  "description": "希望のタイルを残す。\n\n\n\na1223--big-tail-awagreen●"
}