Examine source code of Purple Pie

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Purple Pie",
  "theme": {
    "images": {},
    "properties": {},
    "colors": {
      "toolbar": "rgb(174, 0, 151)",
      "toolbar_text": "rgb(255, 255, 255)",
      "frame": "rgb(174, 0, 151)",
      "tab_background_text": "rgb(255, 255, 255)",
      "toolbar_field": "rgb(43, 43, 43)",
      "toolbar_field_text": "rgb(255, 255, 255)",
      "tab_line": "rgb(43, 43, 43)",
      "popup": "rgb(43, 43, 43)",
      "popup_text": "rgb(255, 255, 255)",
      "button_background_active": "rgb(43, 43, 43)",
      "button_background_hover": "rgb(43, 43, 43)",
      "frame_inactive": "rgb(181, 43, 162)",
      "ntp_background": "rgb(98, 0, 86)",
      "tab_selected": "rgb(43, 43, 43)",
      "tab_loading": "rgb(43, 43, 43)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{b40328b4-3063-4733-94f0-bccb2e9410d8}"
    }
  }
}