Examine source code of Dark Gold

{
  "manifest_version": 2,
  "version": "3.9.1",
  "name": "Dark Gold",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/0.png"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "center top"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgb(48, 48, 48)",
      "toolbar_text": "rgb(255, 150, 3)",
      "frame": "rgb(0, 0, 0)",
      "tab_background_text": "rgb(130, 130, 130)",
      "toolbar_field": "rgb(23, 23, 23)",
      "toolbar_field_text": "rgb(255, 150, 3)",
      "toolbar_field_border_focus": "rgb(255, 150, 3)",
      "toolbar_field_highlight": "rgb(255, 150, 3)",
      "toolbar_field_highlight_text": "rgb(23, 23, 23)",
      "popup": "rgb(35, 35, 35)",
      "popup_text": "rgb(255, 150, 3)",
      "tab_loading": "rgb(255, 150, 3)",
      "ntp_background": "rgb(48, 48, 48)",
      "ntp_text": "rgb(255, 150, 3)",
      "sidebar": "rgb(35, 35, 35)",
      "sidebar_text": "rgb(255, 150, 3)",
      "bookmark_text": "rgb(255, 150, 3)",
      "icons_attention": "rgb(255, 150, 3)",
      "popup_highlight": "rgb(255, 150, 3)",
      "popup_highlight_text": "rgb(23, 23, 23)",
      "sidebar_highlight": "rgb(255, 150, 3)",
      "sidebar_highlight_text": "rgb(23, 23, 23)",
      "tab_line": "rgb(69, 69, 69)",
      "tab_selected": "rgb(48, 48, 48)",
      "tab_text": "rgb(255, 150, 3)",
      "toolbar_field_border": "rgb(23, 23, 23)",
      "toolbar_top_separator": "rgb(23, 23, 23)",
      "popup_border": "rgb(35, 35, 35)"
    }
  }
}