Dark theme - Improvements

- the keyboard bubble should be darker too

Riot/ViewController/RoomSearchViewController.m

@@ -63,7 +63,7 @@
     
     [super viewDidLoad];
     
-    // Add the Vector background image when search bar is empty
+    // Add the Riot background image when search bar is empty
     [self addBackgroundImageViewToView:self.view];
     
     // Initialize here the data sources if a matrix session has been already set.
@@ -72,6 +72,18 @@
     self.searchBar.autocapitalizationType = UITextAutocapitalizationTypeNone;
 }
 
+- (void)userInterfaceThemeDidChange
+{
+    [super userInterfaceThemeDidChange];
+    
+    UIImageView *backgroundImageView = self.backgroundImageView;
+    if (backgroundImageView)
+    {
+        UIImage *image = [MXKTools paintImage:backgroundImageView.image withColor:kRiotKeyboardColor];
+        backgroundImageView.image = image;
+    }
+}
+
 - (void)destroy
 {
     [super destroy];