Added customBackgroundColor property

MTStatusBarOverlay.h

@@ -117,6 +117,7 @@ typedef enum MTMessageType {
 // the delegate of the overlay
 @property (nonatomic, unsafe_unretained) id<MTStatusBarOverlayDelegate> delegate;
 @property(nonatomic, strong) UIColor *customTextColor;
+@property(nonatomic, strong) UIColor *customBackgroundColor;
 //===========================================================
 #pragma mark -
 #pragma mark Class Methods
@@ -196,4 +197,10 @@ typedef enum MTMessageType {
 // is called when an immediate message gets posted and therefore messages in the queue get lost
 // it tells the delegate the lost messages and the delegate can then enqueue the messages again
 - (void)statusBarOverlayDidClearMessageQueue:(NSArray *)messageQueue;
+// is called to ask for custom text color for a specific message type.
+- (void)statusBarOverlay:(MTStatusBarOverlay*)overlay backgroundColorForMessageType:(MTMessageType)messageType;
+// is called to ask for custom background color for a specific message type.
+- (void)statusBarOverlay:(MTStatusBarOverlay*)overlay textColorForMessageType:(MTMessageType)messageType;
+// is called to ask for custom shadow coor for a specific message type.
+- (void)statusBarOverlay:(MTStatusBarOverlay*)overlay shadowColorForMessageType:(MTMessageType)messageType;
 @end

MTStatusBarOverlay.m

@@ -1197,12 +1197,12 @@ - (void)setStatusBarBackgroundForStyle:(UIStatusBarStyle)style {
 		} else {
 			self.statusBarBackgroundImageView.image = [self.defaultStatusBarImage stretchableImageWithLeftCapWidth:2.0f topCapHeight:0.0f];
 		}
-		statusBarBackgroundImageView_.backgroundColor = [UIColor clearColor];
+    statusBarBackgroundImageView_.backgroundColor = self.customBackgroundColor ?: [UIColor clearColor];
 	}
 	// black status bar? -> no image
 	else {
 		self.statusBarBackgroundImageView.image = nil;
-		statusBarBackgroundImageView_.backgroundColor = [UIColor blackColor];
+    statusBarBackgroundImageView_.backgroundColor = self.customBackgroundColor ?: [UIColor blackColor];
 	}
 }