DevTools: Remove stripes from heap snapshot view

Source/devtools/front_end/heapProfiler.css

 /*
  * Copyright (C) 2009 Google Inc. All rights reserved.
  * Copyright (C) 2010 Apple Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
@@ skipping 57 matching lines @@
 }
 
 .heap-snapshot-view .view {
     display: none;
 }
 
 .heap-snapshot-view .view.visible {
     display: block;
 }
 
+.heap-snapshot-view .data-grid {
+    border: none;
+}
+
+.heap-snapshot-view .data-grid table.data {
+    background-image: none;
+}
+
 .heap-snapshot-view .data-grid tr:empty {
     height: 16px;
     visibility: hidden;
 }
 
-.heap-snapshot-view .data-grid {
-    border: none;
+.heap-snapshot-view .data-grid tr:not(.filler):hover {
+    background-color: rgba(0, 0, 0, 0.05);
+}
+
+.heap-snapshot-view .data-grid tr.selected {
+    background-color: rgba(56, 121, 217, 0.1) !important;
+    color: inherit;
+}
+
+.heap-snapshot-view .data-grid tr.parent.selected td.disclosure::before {
+    background-color: rgb(110, 110, 110);
 }
 
 .heap-snapshot-view .data-grid td.count-column {
     text-align: right;
 }
 
 .heap-snapshot-view .data-grid td.addedCount-column {
     text-align: right;
 }
 
@@ skipping 50 matching lines @@
 }
 
 .heap-snapshot-view .console-formatted-string {
     white-space: nowrap;
 }
 
 .heap-snapshot-view .console-formatted-id {
     color: grey;
 }
 
-.heap-snapshot-view .data-grid tr.selected * {
-    color: inherit;
-}
-
-.heap-snapshot-view .data-grid:focus tr.selected * {
-    color: white;
-}
-
 .heap-snapshot-view .delimiter {
     height: 24px;
     background-color: #d6dde5;
 }
 
 .heap-snapshot-view .data-grid {
     position: absolute;
     top: 0;
     left: 0;
     right: 0;
@@ skipping 113 matching lines @@
     border-bottom: 1px solid rgba(0, 0, 0, 0.3);
 }
 
 .heap-recording-overview-canvas {
     position: absolute;
     top: 20px;
     left: 0;
     right: 0;
     bottom: 0;
 }