Changing color of background-image svg icon using svg-mask

svg-icon-mask.scss

@mixin icon-mask($url, $size) {

    &::after {
        content: "";
        display: block;
        position: absolute;
        top: 0;
        right: 0;
        bottom: 0;
        left: 0;
        background: currentColor;
        -webkit-mask: url($url);
        mask: url($url);
        -webkit-mask-size: $size;
        -webkit-mask-repeat: no-repeat;
    }
}