Examine source code of Orange, Pure Black theme

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Organe",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/bg-026-829b05416f823e170310e7c826ad1bec.svg"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "top"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgb(0, 0, 0)",
      "toolbar_text": "rgb(255, 94, 0)",
      "frame": "rgb(0, 0, 0)",
      "tab_background_text": "rgb(255, 121, 0)",
      "toolbar_field": "rgb(0, 0, 0)",
      "toolbar_field_text": "rgb(255, 255, 255)",
      "tab_line": "rgb(255, 94, 0)",
      "popup": "rgb(0, 0, 0)",
      "popup_text": "rgb(255, 255, 255)",
      "icons_attention": "rgb(255, 94, 0)",
      "ntp_background": "rgb(0, 0, 0)",
      "ntp_text": "rgb(243, 108, 29)",
      "popup_border": "rgb(255, 94, 0)",
      "popup_highlight_text": "rgb(251, 255, 0)",
      "popup_highlight": "rgb(232, 106, 32)",
      "sidebar_border": "rgb(255, 94, 0)",
      "sidebar_text": "rgb(255, 255, 255)",
      "sidebar": "rgb(0, 0, 0)",
      "tab_selected": "rgb(234, 116, 7)",
      "tab_text": "rgb(236, 234, 10)",
      "toolbar_bottom_separator": "rgb(0, 0, 0)",
      "toolbar_field_border_focus": "rgb(255, 94, 0)",
      "toolbar_field_border": "rgb(255, 94, 0)",
      "toolbar_field_focus": "rgb(0, 0, 0)",
      "toolbar_field_highlight_text": "rgb(251, 255, 0)",
      "toolbar_field_highlight": "rgb(255, 94, 0)",
      "toolbar_field_text_focus": "rgb(255, 255, 255)",
      "toolbar_top_separator": "rgb(255, 94, 0)",
      "tab_loading": "rgb(255, 94, 0)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{564262ab-a759-4f54-b41c-7ca4bac6eedb}"
    }
  }
}