How to use Hyprwinwrap?

[ElectricalFault]

I'm trying to set a wallpaper using the GLWall and Hyprwinwrap tools. After launching GLWall with the Kitty terminal, hyprctl clients provides the following window information:

Window 1e665d30 -> GLWall ~/Downloads/shader.glsl:
class: kitty
title: GLWall ~/Downloads/shader.glsl
initialClass: kitty
initialTitle: kitty

Window 1e65f210 -> GLWall:
class: 
title: GLWall
initialClass: 
initialTitle: GLWall

GLWall doesn't provide a class by itself, so I can't directly set Hyprwinwrap to work with it, as it requires an "EXACT match and NOT a regex". I don't want to set Kitty as the wallpaper and neither use another terminal just for that. I'm open to workarounds as long as they work.