Changing Default Product background in Dawn theme

I did a search for this but couldn’t find anyone saying where exactly in the CSS this is being set.

Basically, all of my product images with transparent backgrounds are forced white:

I know how to change the CSS to transparent, I just don’t know where the devil this particular color setting is located. Any help would be appreciated.

On you publish store. Go to any of the images, right-click on the white background, click on inspect. There you can see the line in which the css style is and also the css file name.

Oh sweet. Thank you.