Examine source code of D-Gold

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "♦ D-Gold ♦ ",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/bg-000-5672c42860d5b06e1058dc477397f3ef.svg"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "top"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgb(25, 25, 25)",
      "toolbar_text": "rgb(250, 215, 73)",
      "frame": "rgb(21, 21, 21)",
      "tab_background_text": "rgb(250, 215, 73)",
      "toolbar_field": "rgba(44, 44, 44, 0.54)",
      "toolbar_field_text": "rgba(219, 188, 86, 0.57)",
      "tab_line": "rgb(219, 188, 86)",
      "popup": "rgba(21, 21, 21, 0.91)",
      "popup_text": "rgb(250, 215, 73)",
      "button_background_active": "rgba(219, 188, 86, 0.5)",
      "button_background_hover": "rgb(117, 101, 47)",
      "frame_inactive": "rgb(43, 43, 43)",
      "icons_attention": "rgb(250, 215, 73)",
      "icons": "rgb(211, 175, 60)",
      "ntp_background": "rgb(25, 25, 25)",
      "ntp_text": "rgb(219, 188, 86)",
      "popup_border": "rgb(110, 91, 32)",
      "popup_highlight_text": "rgb(250, 215, 73)",
      "popup_highlight": "rgb(110, 91, 32)",
      "sidebar_border": "rgba(219, 188, 86, 0.57)",
      "sidebar_highlight_text": "rgb(21, 21, 21)",
      "sidebar_highlight": "rgb(219, 188, 86)",
      "sidebar_text": "rgb(250, 215, 73)",
      "sidebar": "rgb(21, 21, 21)",
      "tab_background_separator": "rgb(219, 188, 86)",
      "tab_loading": "rgb(219, 188, 86)",
      "tab_selected": "rgba(219, 188, 86, 0.05)",
      "tab_text": "rgb(234, 201, 90)",
      "toolbar_bottom_separator": "rgba(219, 188, 86, 0.5)",
      "toolbar_field_border_focus": "rgb(110, 91, 32)",
      "toolbar_field_border": "rgb(21, 21, 21)",
      "toolbar_field_focus": "rgba(21, 21, 21, 0.95)",
      "toolbar_field_highlight_text": "rgb(69, 60, 20)",
      "toolbar_field_highlight": "rgb(219, 188, 86)",
      "toolbar_field_separator": "rgba(219, 188, 86, 0.61)",
      "toolbar_field_text_focus": "rgb(250, 215, 73)",
      "toolbar_top_separator": "rgba(219, 188, 86, 0.1)",
      "toolbar_vertical_separator": "rgba(219, 188, 86, 0.57)"
    }
  }
}