Tilesize in retina device is not correct

[smoothdvd]

Screenshot:
Wrong:

Should be:

I think code in JCTiledView.m

    CGSize scaledTileSize = CGSizeApplyAffineTransform(self.tileSize, CGAffineTransformMakeScale(self.contentScaleFactor, self.contentScaleFactor));
    self.tiledLayer.tileSize = scaledTileSize;

is not correct: scaledTileSize will be 512 in retina device, but the tile images size is 256x256.