Possible DrawMaterialOverlay list?

Hello, I’m making a dark-themed gamemode, and i’m trying to find a material that has ‘inner shadow’ to draw on the player’s screen (kind of like this), is there a material like this? Also could I have a list of possible ‘drawmaterialoverlay’ list of materials? Thank you.

There’s no such materials in the game by default.
As for the list: list.Get( “OverlayMaterials” )