How to remove grey out on product images in Simple Theme?

[Robbie_archive]

Cant figure out how to remove the grey out, that happens when you hove over products images in Simple theme.
Heres an example:

[Robbie_archive · Accepted solution]

Figured it out, under theme.css, there should be this code:

a {
color: $color-link;
text-decoration: none;

&:hover,
&:focus {
opacity: $opacity-link-hover;
}

Changing $opacity-link-hover to 1, removes the hover effect