Examine source code of Cool color pebble.

{
  "theme": {
    "images": {
      "theme_frame": "1-1215-1212-1203-perplgenseki-fla-00222.jpg"
    },
    "colors": {
      "frame": "#ed9c39",
      "tab_background_text": "#000"
    }
  },
  "version": "2.0",
  "name": "Cool color pebble.",
  "manifest_version": 2,
  "description": "クールな色の石ころ。"
}