Examine source code of Spiraldoodles

{
  "theme": {
    "images": {
      "theme_frame": "spiralheader.jpg"
    },
    "colors": {
      "frame": "#31f7cc",
      "tab_background_text": "#f3f70d"
    }
  },
  "version": "2.0",
  "name": "Spiraldoodles",
  "manifest_version": 2,
  "description": "Some spiral doodles"
}