Examine source code of Lets colorful paint.

{
  "theme": {
    "images": {
      "theme_frame": "q824-togirehasugasugasi-q.jpg"
    },
    "colors": {
      "frame": "#d7d6d9",
      "tab_background_text": "#ffffff"
    }
  },
  "version": "2.0",
  "name": "Lets colorful paint.",
  "manifest_version": 2,
  "description": "ペイントしましょうカラフルに。\n\n\n\n\n\nq824-togirehasugasugasi-q"
}