[MD settings] change line heights and section widths

chrome/browser/resources/settings/settings_shared_css.html

 <!-- Common styles for Material Design settings. -->
 <dom-module id="settings-shared">
   <template>
     <style>
       :root {
         --checkbox-margin-start: 2px;
         --checkbox-size: 16px;
         --checkbox-spacing: 18px;
         --iron-icon-fill-color: var(--paper-grey-600);
         --iron-icon-height: 20px;
         --iron-icon-spacing: 16px;
         --iron-icon-width: 20px;
         --paper-checkbox-label-color: inherit;
         --paper-dialog-color: inherit;
         --paper-icon-button: {
           width: 36px;
           height: 36px;
         };
         --paper-input-max-width: 264px;
         --paper-item: {
           font-size: inherit;
         };
         --paper-radio-button-label-color: inherit;
         --paper-radio-group-item-padding: 0;
 
-        --settings-background-color: var(--paper-blue-grey-50);
+        /* Custom grey for Alan (bettes@). */
+        --settings-background-color: rgb(241, 241, 241);
         --settings-secondary: {
           color: var(--paper-grey-600);
           font-weight: 400;
           margin-top: 4px;
         };
         --settings-error-color: var(--paper-red-700);
         --settings-hover-color: var(--google-grey-300);
 
         /* Some colors use non-MD colors.  These custom colors are specified by
          * UX design (bettes@). */
         --settings-nav-grey: rgb(90, 90, 90);
 
-        --settings-row-min-height: 40px;
+        --settings-row-min-height: 44px;
         --settings-separator-line: 1px solid rgba(0, 0, 0, 0.06);
 
-        --settings-title-bar-background-color: rgb(52, 73, 94);
+        --settings-title-bar-background-color: var(--google-blue-700);
         --settings-title-bar-color: rgb(255, 255, 255);
         --settings-title-search-color: rgb(192, 199, 205);
       }
 
       h2 {
         @apply(--layout-center);
         display: flex;
         font-size: 100%;
         font-weight: 500;
         margin: 0;
@@ skipping 174 matching lines @@
       .settings-box.first,
       .settings-box.continuation {
         border-top: none;
       }
 
       .settings-box.block {
         display: block;
       }
 
       .settings-box.two-line {
-        min-height: 52px;
+        min-height: 56px;
       }
 
       .settings-box .secondary {
         @apply(--settings-secondary);
       }
 
       .settings-box .middle {
         -webkit-margin-start: 16px;
         align-items: center;
         flex: auto;
@@ skipping 44 matching lines @@
 
       .favicon-image {
         background-repeat: no-repeat;
         background-size: contain;
         height: 16px;
         width: 16px;
       }
     </style>
   </template>
 </dom-module>