Examine source code of Monarch Butterfly

{
  "theme": {
    "images": {
      "theme_frame": "monarch_header.jpg"
    },
    "colors": {
      "frame": "#693c10",
      "tab_background_text": "#000000"
    }
  },
  "version": "2.0",
  "name": "Monarch Butterfly",
  "manifest_version": 2,
  "description": "Monarch butterfly pictures on an orange background."
}