MD Settings: Network and bluetooth polish

chrome/browser/resources/settings/bluetooth_page/bluetooth_subpage.html

 <link rel="import" href="chrome://resources/cr_elements/cr_scrollable_behavior.html">
 <link rel="import" href="chrome://resources/html/i18n_behavior.html">
 <link rel="import" href="chrome://resources/html/polymer.html">
 <link rel="import" href="chrome://resources/polymer/v1_0/iron-flex-layout/classes/iron-flex-layout.html">
 <link rel="import" href="chrome://resources/polymer/v1_0/iron-list/iron-list.html">
 <link rel="import" href="chrome://resources/polymer/v1_0/paper-spinner/paper-spinner.html">
 <link rel="import" href="chrome://resources/polymer/v1_0/paper-toggle-button/paper-toggle-button.html">
 <link rel="import" href="../i18n_setup.html">
 <link rel="import" href="../icons.html">
 <link rel="import" href="../settings_shared_css.html">
@@ skipping 10 matching lines @@
       }
 
       .header {
         margin-top: 10px;
       }
 
       paper-spinner {
         @apply(--cr-icon-height-width);
       }
 
-      #onoff[on] {
+      #onOff {
+        font-weight: 500;
+      }
+
+      #onOff[on] {
         color: var(--settings-toggle-color);
       }
     </style>
 
     <div class="settings-box first">
-      <div id="onoff" class="start" on$="[[bluetoothToggleState]]">
+      <div id="onOff" class="start" on$="[[bluetoothToggleState]]">
         [[getOnOffString_(bluetoothToggleState,
           '$i18nPolymer{deviceOn}', '$i18nPolymer{deviceOff}')]]
       </div>
       <paper-toggle-button id="enableBluetooth"
           checked="{{bluetoothToggleState}}"
           disabled$="[[bluetoothToggleDisabled]]"
           aria-label="$i18n{bluetoothToggleA11yLabel}">
       </paper-toggle-button>
     </div>
 
@@ skipping 50 matching lines @@
         dialog-id="[[dialogId_]]"
         error-message="[[errorMessage_]]"
         on-close="onDialogClose_"
         on-device-event="onDeviceEvent_"
         pairing-device="[[pairingDevice_]]">
     </bluetooth-device-dialog>
 
   </template>
   <script src="bluetooth_subpage.js"></script>
 </dom-module>