 class JournalBackgroundView: ThemeableBackgroundView {
     
     var compressionRate : CGFloat = 0
-    let fullCompressionDist : CGFloat = 100
+    let compressionStartPosition : CGFloat = 100
+    let compressionEndPosition : CGFloat = 400
     
     var imageView : UIImageView = UIImageView()
     var blurView : BlurView = DefaultNavBlurView()

        if compressionRate > 1 {
            compressionRate = 1
        }
        
        blurView.alpha = compressionRate
        blurView.setNeedsLayout()

    }
    
    override func streamViewContentOffsetDidChange(contentOffset: CGFloat) {
        if contentOffset <= 0 || contentOffset <= compressionStartPosition {
            compressionRate = 0
        } else {
            compressionRate = 1 - (compressionEndPosition - contentOffset) / (compressionEndPosition - compressionStartPosition)
        }
        
        
        if compressionRate < 0 {
            compressionRate = 0
        }
