Examine source code of Penne Places Browser Theme

{
  "manifest_version": 2,
  "version": "1.2",
  "name": "Penne Places",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/0.png"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "left center"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgb(17, 75, 95)",
      "toolbar_text": "rgb(243, 233, 210)",
      "frame": "rgb(26, 147, 111)",
      "tab_background_text": "rgb(17, 75, 95)",
      "toolbar_field": "rgb(17, 75, 95)",
      "toolbar_field_text": "rgb(243, 233, 210)",
      "tab_line": "rgb(17, 75, 95)",
      "popup": "rgb(17, 75, 95)",
      "popup_text": "rgb(243, 233, 210)",
      "button_background_active": "rgb(226, 46, 94)",
      "icons_attention": "rgb(226, 46, 94)",
      "icons": "rgb(243, 233, 210)",
      "ntp_background": "rgb(17, 75, 95)",
      "ntp_text": "rgb(17, 75, 95)",
      "popup_border": "rgba(243, 233, 210, 0.6)",
      "popup_highlight_text": "rgb(243, 233, 210)",
      "popup_highlight": "rgb(17, 75, 95)",
      "tab_background_separator": "rgb(17, 75, 95)",
      "tab_loading": "rgb(17, 75, 95)",
      "tab_selected": "rgb(17, 75, 95)",
      "tab_text": "rgb(243, 233, 210)",
      "toolbar_bottom_separator": "rgb(17, 75, 95)",
      "toolbar_field_border_focus": "rgb(226, 46, 94)",
      "toolbar_field_border": "rgba(243, 233, 210, 0.6)",
      "toolbar_field_focus": "rgb(17, 75, 95)",
      "toolbar_field_highlight_text": "rgb(243, 233, 210)",
      "toolbar_field_highlight": "rgb(226, 46, 94)",
      "toolbar_field_separator": "rgb(226, 46, 94)",
      "toolbar_field_text_focus": "rgb(243, 233, 210)",
      "toolbar_top_separator": "rgb(17, 75, 95)",
      "toolbar_vertical_separator": "rgb(243, 233, 210)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{f4549314-6b6b-40a9-94c9-c07fb84851a6}"
    }
  }
}