Examine source code of Butterfly Purple

{
  "theme": {
    "images": {
      "theme_frame": "butterfly-top.png"
    },
    "colors": {
      "frame": "#faf2f2",
      "tab_background_text": "#fff7f7"
    }
  },
  "version": "2.0",
  "name": "Butterfly Purple",
  "manifest_version": 2,
  "description": "Cool funky purple butterflies"
}