How can I change the image border

go to category-grid-view-gallery/css/style.css file

then edit this line:

div.cgview ul li{
display:inline-block;
position:relative;
border:4px double;

change border type

u can choose any color you want in the line:

div.cgview.light ul li{border-color: #aaa;}

I removed this piece of code from the css file – worked a charm

-webkit-border-radius: 10px;-moz-border-radius: 10px;border-radius: 10px;