Examine source code of Orange Checker Theme

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Orange Checker Theme",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/0.png"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "right top"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgb(22, 9, 2)",
      "toolbar_text": "rgb(253, 123, 45)",
      "frame": "rgb(22, 9, 2)",
      "tab_background_text": "rgb(253, 186, 145)",
      "toolbar_field": "rgb(45, 20, 4)",
      "toolbar_field_text": "rgb(248, 188, 152)",
      "tab_line": "rgba(253, 123, 45, 0.4)",
      "popup": "rgb(22, 9, 2)",
      "popup_text": "rgb(253, 123, 45)",
      "frame_inactive": "rgb(22, 9, 2)",
      "icons_attention": "rgb(248, 188, 152)",
      "ntp_background": "rgb(22, 9, 2)",
      "ntp_text": "rgb(253, 123, 45)",
      "popup_border": "rgba(253, 123, 45, 0.4)",
      "popup_highlight_text": "rgb(248, 188, 152)",
      "popup_highlight": "rgba(253, 123, 45, 0.4)",
      "sidebar_border": "rgba(253, 123, 45, 0.4)",
      "sidebar_highlight_text": "rgb(248, 188, 152)",
      "sidebar_highlight": "rgba(253, 123, 45, 0.4)",
      "sidebar_text": "rgb(253, 123, 45)",
      "sidebar": "rgb(22, 9, 2)",
      "tab_background_separator": "rgba(253, 123, 45, 0.4)",
      "tab_loading": "rgb(22, 9, 2)",
      "tab_selected": "rgb(22, 9, 2)",
      "tab_text": "rgb(253, 123, 45)",
      "toolbar_bottom_separator": "rgba(253, 123, 45, 0.4)",
      "toolbar_field_border_focus": "rgba(253, 123, 45, 0.4)",
      "toolbar_field_border": "rgba(253, 123, 45, 0.4)",
      "toolbar_field_highlight_text": "rgb(248, 188, 152)",
      "toolbar_field_highlight": "rgba(253, 123, 45, 0.4)",
      "toolbar_field_separator": "rgba(253, 123, 45, 0.4)",
      "toolbar_field_text_focus": "rgb(253, 123, 45)",
      "toolbar_top_separator": "rgba(253, 123, 45, 0.4)",
      "toolbar_vertical_separator": "rgba(253, 123, 45, 0.4)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{37c86aa1-e2d7-4db4-a560-665e41ba301f}"
    }
  }
}