I'm using this great module in one of my projects and it works really great, but there's a problem: the image quality of the thumbs is too low for this project.
I need to change it for at least 80 and couldn't find in the code where to change it.
Where can I find it? I'm not asking the easy way, I just need to know exactly where. I'm not a developer but I don't have any problem dealing with php, so bring it on

Thanks!