Adds a custom Retainer Box called "Deformer Retainer Box" inside UMG that allows widgets under it to be deformed.

NOTE: Like the Unreal Retainer Box, it only works when playing the game, NOT in the UMG editor. So adjusting the settings, then playing the game is how to iterate. This is fixed as of Unreal 5.3. There's now a boolean called "Show Effects in Designer", which defaults to true.

Instructions:

Simply add any widget under it and set its settings to your needs.