I tested it on both the demo project and on a blank project and it's the same thing, it seems to always default to ID 1 when it comes to choices. I turned off the plugin and the dim and transparent effects worked again.
I was gonna use this plugin for certain moments in the game where I'd like the choice window to look different, however when I installed this plugin ALL the choice windows in my game were set to their default background when some were either dimmed or transparent.
