Examine source code of Purple Peace

{
  "theme": {
    "images": {
      "theme_frame": "zpurpleheader.JPG"
    },
    "colors": {
      "frame": "#f3a5fa",
      "tab_background_text": "#e6ff00"
    }
  },
  "version": "2.0",
  "name": "Purple Peace",
  "manifest_version": 2,
  "description": "Purple is very soothing. It is not too busy to see, for those of us who don't see as well as we used too!"
}