Examine source code of porple white

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "porple white",
  "theme": {
    "images": {},
    "properties": {},
    "colors": {
      "toolbar": "rgb(227, 227, 227)",
      "toolbar_text": "rgb(0, 0, 0)",
      "frame": "rgb(227, 227, 227)",
      "tab_background_text": "rgb(0, 0, 0)",
      "toolbar_field": "rgb(198, 198, 198)",
      "toolbar_field_text": "rgb(0, 0, 0)",
      "tab_line": "rgba(0, 0, 0, 0)",
      "popup": "rgb(198, 198, 198)",
      "popup_text": "rgb(0, 0, 0)",
      "button_background_active": "rgb(117, 54, 188)",
      "button_background_hover": "rgb(179, 165, 196)",
      "icons": "rgb(0, 0, 0)",
      "ntp_background": "rgb(227, 227, 227)",
      "popup_border": "rgba(0, 0, 0, 0)",
      "sidebar_border": "rgba(0, 0, 0, 0)",
      "sidebar": "rgb(227, 227, 227)",
      "tab_background_separator": "rgba(0, 0, 0, 0)",
      "tab_selected": "rgb(117, 54, 188)",
      "tab_text": "rgb(255, 255, 255)",
      "toolbar_bottom_separator": "rgba(0, 0, 0, 0)",
      "toolbar_field_border_focus": "rgb(117, 54, 188)",
      "toolbar_field_border": "rgba(0, 0, 0, 0)",
      "toolbar_field_highlight": "rgb(117, 54, 188)",
      "toolbar_field_separator": "rgba(0, 0, 0, 0)",
      "toolbar_top_separator": "rgba(0, 0, 0, 0)",
      "toolbar_vertical_separator": "rgb(177, 177, 177)",
      "tab_loading": "rgba(0, 0, 0, 0)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{fc2f9abd-aa5d-4ffb-9248-dd511a78b4d0}"
    }
  }
}