Dear Dr. Rarden

Thanks for this wonderful tool a million times!

Currently, I am attempting to create an image that features multiple overlays, with the base image being semi-transparent in each hemisphere, only up to the midline.
I have tried adjusting the transparency settings of both the base images and overlays, but the result is still visually confusing, as the activation in each hemispheres remain visible through each other.

Could you kindly provide guidance on how to achieve the desired outcome?

Thank you,
Tammar