Rambox-CE/ext/packages/ext-theme-neutral/sass/src/view/MultiSelector.scss

.#{$prefix}multiselector-remove {
    font-size: $multiselector-remove-font-size;
    color: $multiselector-remove-text-color;
    cursor: $multiselector-remove-cursor;

    .#{$prefix}grid-cell-inner {
        padding: $multiselector-remove-padding;
    }
}

.#{$prefix}grid-item-over .#{$prefix}multiselector-remove {
    color: $multiselector-remove-text-color-over;
}