UIBackgroundPixelate

Use it on ScreenSpaceUI or World Space LGUI Renderer.May have some issue when MSAA is on. This component can make pixelate effect the background view's image.

Create it by select "Create UI Post Process"->"UIBackgroundPixelate":

Property:	Function:
Pixelate Strength	Pixelate effect strength.
Apply Alpha to Strength	Will alpha affect blur strength? If true, then 0 alpha means 0 blur strength, and 1 alpha means full blur strength. So if you need animation on Pixelate Strength, just use "Alpha To" node on blueprint.
Custem UIMaterial is not supported.