diff --git a/MaryPopin.podspec b/MaryPopin.podspec
index 30c4528..88819c9 100644
--- a/MaryPopin.podspec
+++ b/MaryPopin.podspec
@@ -1,6 +1,6 @@
 Pod::Spec.new do |s|
   s.name         = "MaryPopin"
-  s.version      = "1.3.1"
+  s.version      = "1.4"
   s.summary      = "Category to display modal-like view controllers with more options"
 
   s.description  = <<-DESC
@@ -17,7 +17,7 @@ Pod::Spec.new do |s|
 
   s.platform     = :ios, '5.0'
 
-  s.source       = { :git => "https://github.com/Backelite/MaryPopin.git", :tag => "1.3.1" }
+  s.source       = { :git => "https://github.com/Backelite/MaryPopin.git", :tag => "1.4" }
 
   s.source_files  = 'MaryPopin/**/*.{h,m}'
 
diff --git a/MaryPopin/UIViewController+MaryPopin.h b/MaryPopin/UIViewController+MaryPopin.h
index 1af7c7c..ce79409 100644
--- a/MaryPopin/UIViewController+MaryPopin.h
+++ b/MaryPopin/UIViewController+MaryPopin.h
@@ -23,6 +23,30 @@
 
 #import <UIKit/UIKit.h>
 
+/**
+ * Object to customize blurry background
+ */
+@interface BKTBlurParameters : NSObject
+/**
+ *  Property to customize background view alpha.
+ */
+@property (assign, nonatomic) CGFloat alpha;
+/**
+ *  Property to customize background view blur radius.
+ */
+@property (assign, nonatomic) CGFloat radius;
+/**
+ *  Property to customize background view blur saturation factor.
+ *  A value of 1.0 is neutral. Below it is desaturated and above it is more saturated.
+ */
+@property (assign, nonatomic) CGFloat saturationDeltaFactor;
+/**
+ *  Property to customize blur tint color. Default is clear color.
+ */
+@property (strong, nonatomic) UIColor *tintColor;
+
+@end
+
 /**
  *  Transition styles available when presenting popin view controllers.
  *  @since v1.0
@@ -103,6 +127,10 @@ typedef NS_OPTIONS(NSUInteger, BKTPopinOption) {
      *  Takes a screenshot of presenting view, blurs it and uses it as dimming view. Available only on ios 7.x.
      */
     BKTPopinBlurryDimmingView = 1 << 2,
+    /**
+     *  Disable parallax effect on iOS7
+     */
+    BKTPopinDisableParallaxEffect = 1 << 3,
     /**
      *  Set a background dimming view with a clear color. Default is a semi-transparent black background
      */
@@ -332,4 +360,22 @@ typedef NS_ENUM(NSInteger, BKTPopinAlignementOption) {
  *  @since v1.3
  */
 - (void)setPopinAlignment:(BKTPopinAlignementOption)popinAlignment;
+
+/**
+ *  An object used to configure the blurred background.
+ *
+ *  @return The blur parameters object.
+ *  @see -setBlurParameters:
+ *  @since v1.4
+ */
+- (BKTBlurParameters *)blurParameters;
+
+/**
+ *  An object used to configure the blurred background.
+ *
+ *  @param blurParameters The blur parameters object.
+ *  @sicne v1.4
+ */
+- (void)setBlurParameters:(BKTBlurParameters *)blurParameters;
+
 @end
diff --git a/MaryPopin/UIViewController+MaryPopin.m b/MaryPopin/UIViewController+MaryPopin.m
index 3f7da3d..ed9c526 100644
--- a/MaryPopin/UIViewController+MaryPopin.m
+++ b/MaryPopin/UIViewController+MaryPopin.m
@@ -93,6 +93,21 @@ CG_INLINE CGRect    BkRectInRectWithAlignementOption(CGRect myRect, CGRect refRe
     }
 }
 
+
+@implementation BKTBlurParameters
+- (id)init
+{
+    self = [super init];
+    if (self) {
+        self.alpha = 1.0f;
+        self.radius = 20.f;
+        self.saturationDeltaFactor = 1.8f;
+        self.tintColor = [UIColor clearColor];
+    }
+    return self;
+}
+@end
+
 @interface UIImage (MaryPopinBlur)
 
 - (UIImage *)marypopin_applyBlurWithRadius:(CGFloat)blurRadius tintColor:(UIColor *)tintColor saturationDeltaFactor:(CGFloat)saturationDeltaFactor maskImage:(UIImage *)maskImage;
@@ -130,8 +145,10 @@ - (void)presentPopinController:(UIViewController *)popinController fromRect:(CGR
             [dimmingView setBackgroundColor:[UIColor clearColor]];
         } else if (options & BKTPopinBlurryDimmingView && [self.view respondsToSelector:@selector(drawViewHierarchyInRect:afterScreenUpdates:)]) {
             UIImage *bgImage = [self createImageFromView:self.view];
-            bgImage = [bgImage marypopin_applyBlurWithRadius:20.0 tintColor:[UIColor clearColor] saturationDeltaFactor:1.8 maskImage:nil];
+            BKTBlurParameters *parameters = [popinController blurParameters];
+            bgImage = [bgImage marypopin_applyBlurWithRadius:parameters.radius tintColor:parameters.tintColor saturationDeltaFactor:parameters.saturationDeltaFactor maskImage:nil];
             UIImageView *bgImageView = [[UIImageView alloc] initWithImage:bgImage];
+            bgImageView.alpha = parameters.alpha;
             [dimmingView addSubview:bgImageView];
         } else {
             [dimmingView setBackgroundColor:[UIColor colorWithWhite:0.0f alpha:0.1f]];
@@ -395,7 +412,10 @@ - (void)addPopinToHierarchy:(UIViewController *)popinController
      UIViewAutoresizingFlexibleBottomMargin];
     
     //Add motion effect
-    [UIViewController registerParalaxEffectForView:popinController.view WithDepth:10.0f];
+    BKTPopinOption options = [popinController popinOptions];
+    if (NO == (options & BKTPopinDisableParallaxEffect)) {
+        [UIViewController registerParalaxEffectForView:popinController.view WithDepth:10.0f];
+    }
     
     [self.view addSubview:popinController.view];
     //Create animator if needed
@@ -411,18 +431,27 @@ - (void)addPopinToHierarchy:(UIViewController *)popinController
 
 - (void)forwardAppearanceBeginningIfNeeded:(UIViewController *)popinController appearing:(BOOL)isAppearing animated:(BOOL)animated
 {
-    if ([self shouldAutomaticallyForwardAppearanceMethods] == NO) {
+    if ([self bk_shouldAutomaticallyForwardAppearanceMethods] == NO) {
         [popinController beginAppearanceTransition:isAppearing animated:animated];
     }
 }
 
 - (void)forwardAppearanceEndingIfNeeded:(UIViewController *)popinController
 {
-    if ([self shouldAutomaticallyForwardAppearanceMethods] == NO) {
+    if ([self bk_shouldAutomaticallyForwardAppearanceMethods] == NO) {
         [popinController endAppearanceTransition];
     }
 }
 
+- (BOOL)bk_shouldAutomaticallyForwardAppearanceMethods
+{
+    if ([self respondsToSelector:@selector(shouldAutomaticallyForwardAppearanceMethods)]) {
+        return [self shouldAutomaticallyForwardAppearanceMethods];
+    }
+        
+    return [self automaticallyForwardAppearanceAndRotationMethodsToChildViewControllers];
+}
+
 + (void)registerParalaxEffectForView:(UIView *)aView WithDepth:(CGFloat)depth;
 {
     if ([aView respondsToSelector:@selector(motionEffects)]) {
@@ -519,6 +548,21 @@ - (void)setPopinOptions:(BKTPopinOption)popinOptions
     objc_setAssociatedObject(self, @selector(popinOptions),  [NSNumber numberWithInt:popinOptions], OBJC_ASSOCIATION_RETAIN_NONATOMIC);
 }
 
+- (BKTBlurParameters *)blurParameters
+{
+    BKTBlurParameters *param = objc_getAssociatedObject(self, _cmd);
+    if (nil == param) {
+        return [[BKTBlurParameters alloc] init];
+    }
+    
+    return param;
+}
+
+- (void)setBlurParameters:(BKTBlurParameters *)blurParameters
+{
+    objc_setAssociatedObject(self, @selector(blurParameters), blurParameters, OBJC_ASSOCIATION_RETAIN_NONATOMIC);
+}
+
 - (void (^)(UIViewController * popinController,CGRect initialFrame,CGRect finalFrame))popinCustomInAnimation
 {
     return objc_getAssociatedObject(self, _cmd);
@@ -542,7 +586,6 @@ - (void)setPopinCustomOutAnimation:(void (^)(UIViewController * popinController,
 
 - (BKTPopinAlignementOption)popinAlignment
 {
-    id storedValue = objc_getAssociatedObject(self, _cmd);
     return [objc_getAssociatedObject(self, _cmd) intValue];
 }
 
diff --git a/MaryPopinDemo/MaryPopinDemo/BKTViewController.m b/MaryPopinDemo/MaryPopinDemo/BKTViewController.m
index f179bc9..d610a2d 100644
--- a/MaryPopinDemo/MaryPopinDemo/BKTViewController.m
+++ b/MaryPopinDemo/MaryPopinDemo/BKTViewController.m
@@ -62,6 +62,14 @@ - (IBAction)presentPopinPressed:(id)sender {
     //Set popin alignement according to value in segmented control
     [popin setPopinAlignment:self.selectedAlignementOption];
     
+    //Create a blur parameters object to configure background blur
+    BKTBlurParameters *blurParameters = [BKTBlurParameters new];
+    blurParameters.alpha = 1.0f;
+    blurParameters.radius = 8.0f;
+    blurParameters.saturationDeltaFactor = 1.8f;
+    blurParameters.tintColor = [UIColor colorWithRed:0.966 green:0.851 blue:0.038 alpha:0.2];
+    [popin setBlurParameters:blurParameters];
+    
     //Add option for a blurry background
     [popin setPopinOptions:[popin popinOptions]|BKTPopinBlurryDimmingView];
     
diff --git a/README.md b/README.md
index 3054278..5968000 100644
--- a/README.md
+++ b/README.md
@@ -1,5 +1,8 @@
 MaryPopin
 =========
+[![License MIT](https://img.shields.io/badge/license-MIT-green.svg)](https://github.com/Backelite/MaryPopin/blob/master/LICENSE)
+[![Release](http://img.shields.io/github/release/Backelite/MaryPopin.svg)](https://github.com/Backelite/MaryPopin)
+[![CocoaPods](http://img.shields.io/cocoapods/v/MaryPopin.svg)](https://github.com/Backelite/MaryPopin)
 
 MaryPopin is a category on `UIViewController` to present modal like controller with more flexibility.
 
@@ -28,6 +31,11 @@ that is why we name it a popin controller. And as it is implemented as a categor
 =========
 
 ## Changes
+v1.4
+* Added an option to configure blur background
+* Fixed a crash with iOS 5.x
+* Fixed an unused variable warning
+
 v 1.3.1
 * Fixed an issue with default alignment option
 
@@ -124,7 +132,7 @@ If you are using CocoaPods in version 0.29 or better, you can quickly run the de
 	pod try MaryPopin
 
 ## Requirements
-MaryPopin requires Xcode 5 as it uses (optionaly) UIKit Dynamics and motion effects. You can use iOS 5 as a target deployment version. Note that some transition styles are not supported under iOS 7 and will be replaced by the default transition style.
+MaryPopin requires Xcode 5 as it uses (optionally) UIKit Dynamics and motion effects. You can use iOS 5 as a target deployment version. Note that some transition styles are not supported under iOS 7 and will be replaced by the default transition style.
 
 ### ARC
 MaryPopin uses ARC.