DevTools: Select option background added to fix Dark theme

third_party/WebKit/Source/devtools/front_end/settings/settingsScreen.css

 /*
  * Copyright (c) 2015 The Chromium Authors. All rights reserved.
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 .help-window-main {
     color: rgb(48, 57, 66);
     background-color: white;
     padding: 11px 0 0 0;
@@ skipping 157 matching lines @@
 }
 
 .settings-experiments-warning-subsection-message {
     color: inherit;
 }
 
 .help-content input[type=checkbox] {
     margin: 1px 7px 1px 2px;
 }
 
-.help-content option {
-    background-color: #EEEEEE;
-    color: #222;
-}
-
 .settings-window-title {
     font-size: 18px;
     color: rgb(48, 57, 66);
     padding: 0 0 5px 13px;
 }
 
 .help-container-wrapper {
     position: absolute;
     top: 31px;
     left: 0px;
@@ skipping 138 matching lines @@
     display: none;
 }
 
 .settings-experiment-hidden label {
     background-color: #ddd;
 }
 
 .settings-developer-mode .settings-experiment-hidden {
     display: block;
 }