DevTools: Select option background added to fix Dark theme

third_party/WebKit/Source/devtools/front_end/ui/inspectorCommon.css

 /*
  * Copyright 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.
  */
 
 * {
     /* This is required for correct sizing of flex items because we rely
      * on an old version of the flexbox spec.
      * Longer-term we should remove this, see crbug.com/473625 */
@@ skipping 247 matching lines @@
 
 body.inactive select.chrome-select,
 .chrome-select:disabled {
     background-image: -webkit-image-set(url(Images/chromeDisabledSelect.png) 1x, url(Images/chromeDisabledSelect_2x.png) 2x), linear-gradient(#f1f1f1, #f1f1f1 38%, #e6e6e6);
     border-color: rgba(80, 80, 80, 0.2);
     box-shadow: 0 1px 0 rgba(80, 80, 80, 0.08),
     inset 0 1px 2px rgba(255, 255, 255, 0.75);
     color: #aaa;
 }
 
+.chrome-select optgroup,
+.chrome-select option {
+    background-color: #EEEEEE;
+    color: #222;
+}
+
 :not(.platform-mac).-theme-with-dark-background ::-webkit-scrollbar,
 :host-context(:not(.platform-mac).-theme-with-dark-background) ::-webkit-scrollbar {
     width: 14px;
 }
 
 :not(.platform-mac).-theme-with-dark-background ::-webkit-scrollbar-track,
 :host-context(:not(.platform-mac).-theme-with-dark-background) ::-webkit-scrollbar-track {
     -webkit-box-shadow: inset 0 0 1px rgba(255,255,255,0.3);
 }
 
@@ skipping 29 matching lines @@
     padding: 20px;
     position: absolute;
     top: 0;
     right: 0;
     bottom: 0;
     left: 0;
     font-size: 13px;
     overflow: auto;
     z-index: 500;
 }