[Grace Themes]

Hi Nenad,

To remove the white circle in the middle of the picture and to change the shape to square
Go to Appearance -> Editor -> style.css
add below css code at the end of style.css file

.cntimage span.counter { display:none !important; }
.cntimage, .cntimage img { border-radius:0% !important; }

Regards
Grace Themes