Dark theme - Improvements

- the keyboard bubble should be darker too

Riot/ViewController/SegmentedViewController.h

@@ -77,6 +77,11 @@ limitations under the License.
  @param viewControllers the list of viewControllers to display.
  @param defaultSelected index of the default selected UIViewController in the list.
  */
-- (void)initWithTitles:(NSArray*)titles viewControllers:(NSArray*)viewControllers defaultSelected:(NSUInteger)index;
+- (void)initWithTitles:(NSArray*)titles viewControllers:(NSArray*)viewControllers defaultSelected:(NSUInteger)defaultSelected;
+
+/**
+ Callback used to take into account the change of the user interface theme.
+ */
+- (void)userInterfaceThemeDidChange;
 
 @end