Can’t see prev/next or dots against black background

I’ve been trying to figure out why the carousel won’t show its buttons or dots on my dark mode website (black background), but then I realized that there’s a CSS rule setting the buttons to black. Can this be made a setting instead? They simple aren’t visible on my site at all.

Thanks!

.wp-block-cb-carousel .slick-next:before, .wp-block-cb-carousel .slick-prev:before {
    color: #000;
}

.slick-dots li.slick-active button:before {
    color: #000;
}

.slick-dots li button::before {
    color: rgb(0, 0, 0);
}