Change Sierra Login Screen Background Blur Amount Ever since the Sierra update, when I boot up my Mac the background is a lot less blurred and more saturated then the normal lockscreen.

I'd like to be able to customise the the amount of blur (not remove it entirely) and saturation on the lockscreen and I am wondering how I would be able to achieve this.

Boot Background (What I want the lock screen to look like as well):


Lock Screen (A lot more blurred and less saturated):


Thanks :)
The image file is stored in Macintosh-HD:Library:Caches:

There will only be like 3 files there so it should be easy to find.

You can take this file and edit it in an image editor such as GIMP(free) or Photoshop(not free) etc.

Don't forget to make sure that the image keeps it's name or OSX will get confused.

You may also need to use the original image, if, you want to blur it down.

Hope this helps!