Format: BackdropCornerFlags Text,
Example: BackdropCornerFlags "UL|UR|BL|BR|T|L|B|R", //Whole Border
Example: BackdropCornerFlags "UL|UR|T|L|R", //No Bottom Border
Purpose: EdgeFiles displayed, one can skip some and order does not matter. Using this without seting border files will crash the game when this Backdrop is displayed
Used in: BACKDROP