ChromeOS Gaia: Changed background color of the Gaia footer to RGBA(0, 0, 0, 0.02)

chrome/browser/resources/chromeos/login/gaia_card.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.
  */
 
 :host {
   height: 528px;
   width: 448px;
 }
 
 .gaia-header {
   background-color: rgb(66, 133, 244);
   color: rgb(255, 255, 255);
   height: 164px;
 }
 
 .gaia-footer,
 #progress-bar::shadow #progressContainer {
-  background-color: rgb(238, 238, 238);
+  background-color: rgba(0, 0, 0, 0.02);
 }
 
 .gaia-footer {
   position: relative;
 }
 
 .header-container {
   padding: 34px 40px 16px;
 }
 
@@ skipping 61 matching lines @@
 }
 
 #progress-bar::shadow #activeProgress {
   background-color: rgb(255, 184, 9);
 }
 
 :host(.disabled) #bottom-overlay,
 :host(.disabled) #progress-bar {
   display: block;
 }