Dark theme - Improvements

- spinner bg being white

Riot/ViewController/RoomSettingsViewController.m

@@ -246,6 +246,7 @@ NSString *const kRoomSettingsAdvancedE2eEnabledCellViewIdentifier = @"kRoomSetti
 {
     self.defaultBarTintColor = kRiotSecondaryBgColor;
     self.barTitleColor = kRiotPrimaryTextColor;
+    self.activityIndicator.backgroundColor = kRiotOverlayColor;
     
     // Check the table view style to select its bg color.
     self.tableView.backgroundColor = ((self.tableView.style == UITableViewStylePlain) ? kRiotPrimaryBgColor : kRiotSecondaryBgColor);