Examine source code of (Old) Chrome Dark

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Chrome Dark",
  "theme": {
    "images": {},
    "properties": {},
    "colors": {
      "toolbar": "rgb(53, 54, 58)",
      "toolbar_text": "rgb(255, 255, 255)",
      "frame": "rgb(32, 33, 36)",
      "tab_background_text": "rgb(215, 226, 239)",
      "toolbar_field": "rgb(32, 33, 36)",
      "toolbar_field_text": "rgb(255, 255, 255)",
      "tab_line": "rgba(205, 35, 185, 0)",
      "popup": "rgb(53, 54, 58)",
      "popup_text": "rgb(241, 243, 244)",
      "button_background_active": "rgb(80, 81, 84)",
      "button_background_hover": "rgb(69, 70, 73)",
      "frame_inactive": "rgb(60, 64, 67)",
      "icons": "rgb(241, 243, 244)",
      "ntp_background": "rgb(53, 54, 58)",
      "ntp_text": "rgb(232, 234, 237)",
      "popup_border": "rgb(60, 64, 67)",
      "popup_highlight": "rgb(60, 64, 67)",
      "sidebar_border": "rgba(241, 243, 244, 0)",
      "sidebar_highlight_text": "rgb(255, 255, 255)",
      "sidebar_highlight": "rgb(64, 66, 68)",
      "sidebar": "rgb(32, 33, 36)",
      "tab_loading": "rgb(138, 180, 248)",
      "tab_text": "rgb(255, 255, 255)",
      "toolbar_bottom_separator": "rgb(96, 97, 100)",
      "toolbar_field_border_focus": "rgba(0, 0, 0, 0)",
      "toolbar_field_focus": "rgb(41, 42, 45)",
      "toolbar_field_highlight_text": "rgb(255, 255, 255)",
      "toolbar_field_highlight": "rgb(83, 102, 133)",
      "toolbar_vertical_separator": "rgb(110, 112, 115)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{075832d5-39c2-4c86-bdee-9172822addd0}"
    }
  }
}