Examine source code of Echinacea Butterfly

{
  "theme": {
    "images": {
      "theme_frame": "Echinacea-Butterfly-Header.jpg"
    },
    "colors": {
      "frame": "#cf6808",
      "tab_background_text": "#faf7f7"
    }
  },
  "version": "2.0",
  "name": "Echinacea Butterfly",
  "manifest_version": 2,
  "description": "I captured this butterfly in a garden of echinacea flowers at Disneyland.  I hope you like it.\nsksisme"
}