user-items-list-carousel__arrow-button--right::before{
  content:"";
  background-image:url(SVG-HERE);
    background-size: contain;
    background-repeat: no-repeat;
    width:100%;
    height:100%;
    position:absolute;
    background-position:center;
    top:0;
    left:0;
  
}

user-items-list-carousel__arrow-button--left::before{
  content:"";
  background-image:url(SVG-HERE);
    background-size: contain;
    background-repeat: no-repeat;
    width:100%;
    height:100%;
    position:absolute;
    background-position:center;
    top:0;
    left:0;
  
}