[RMVX ACE] HELP WITH SHOW PICTURE (*SHAME*)

This is frustrating because I really think I knew how to do this once, but how do you get a picture to center on the player, and not on the screen. I know there's a script by someone called something something picture anchors, but a) I tried it and it didn't work and actually made the problem worse and b) I'm almost sure I could do this without a script back in VX, at least.

As a simple example, let's say I want this picture as an overlay to center on the player, because the player is exploring a dark dungeon or whatever and can only see a tiny circle around them from a torch or whatever. This can be used for creating a fog of war, making a horror game tense by restricting visibility, whatever. I'm over-explaining.



Right now, Ace centers the picture on the screen. The circle of light doesn't travel with the player, and the player can easily move out of the light and onto a completely obfuscated part of the map. I am almost positive I knew how to do this properly once and without any special script to do it...but I totally forgot. Can someone remind me?

Please and thank you.
- Crow