Supply Slideshow: Change opacity of slideshow navigation buttons

[zenmassager]

Hello all, I am using the supply theme and I'm trying to change the slideshow so that it doesn't look like a random blue circle underneath the slideshow. I want to be able to change the opacity of the other unselected slides so the customer can see the other circles. (they show when I change the background colors, but I want the background to stay white) 

Thank you all in advance for your help. 

[kanatasoap]

Were you able to fix the issue? I want to do the exact thing but I can't. 

Thank you.