Examine source code of Dark Uniform V1

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Dark Uniform V1",
  "theme": {
    "images": {},
    "properties": {},
    "colors": {
      "toolbar": "rgb(44, 44, 44)",
      "toolbar_text": "rgb(255, 255, 255)",
      "frame": "rgb(23, 23, 23)",
      "tab_background_text": "rgb(238, 238, 238)",
      "toolbar_field": "rgb(63, 63, 67)",
      "toolbar_field_text": "rgb(255, 255, 255)",
      "tab_line": "rgb(19, 19, 19)",
      "popup": "rgb(47, 46, 51)",
      "popup_text": "rgb(238, 238, 238)",
      "button_background_active": "rgb(60, 60, 86)",
      "button_background_hover": "rgb(89, 89, 111)",
      "icons_attention": "rgb(237, 214, 60)",
      "icons": "rgb(175, 175, 187)",
      "ntp_background": "rgb(91, 91, 104)",
      "ntp_text": "rgb(220, 220, 227)",
      "popup_border": "rgb(77, 117, 162)",
      "popup_highlight_text": "rgb(255, 255, 255)",
      "popup_highlight": "rgb(77, 117, 162)",
      "sidebar_border": "rgb(40, 40, 45)",
      "sidebar_highlight": "rgb(47, 47, 83)",
      "sidebar": "rgb(40, 40, 45)",
      "tab_loading": "rgb(59, 59, 89)",
      "tab_selected": "rgb(40, 40, 51)",
      "tab_text": "rgb(237, 214, 60)",
      "toolbar_bottom_separator": "rgb(44, 44, 44)",
      "toolbar_field_border_focus": "rgb(78, 77, 90)",
      "toolbar_field_border": "rgb(77, 117, 162)",
      "toolbar_field_focus": "rgb(63, 63, 67)",
      "toolbar_field_highlight": "rgb(77, 117, 162)",
      "toolbar_field_separator": "rgb(77, 117, 162)",
      "toolbar_top_separator": "rgb(23, 23, 23)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{c1d9faea-9ad3-4e18-bedd-98d30ebb63db}"
    }
  }
}