Background Image Stimuli with Occluders in TTC

[stanley1O1]

PsychoPy version: 2023.2.3

What are you trying to achieve?:
I am trying to build a TTC task where some trials have a background image, and others do not. I am able to make the background image change between trials using the fixes from here:

Can I use a constant background image throughout an experiment?

Hi guys, I’m looking to add a constant background (a frame around the stims) to every trial of an experiment and to the instructions. It’d be a pain to add the image to each routine with visual.ImageStim(), so I’m wondering if there’s a quick way to specify a background when setting up the window instead? Thanks!

However, I am having trouble with the occluder object. As setting the occluder opacity to 0 (to match the background scene) means the dot does not disappear.
Is there a way to make the occluder display the background image? Coding or otherwise.
Issac