Hi,
1. Use the code below please
.pm-slick .slick-arrow { background: #000; } /* normal state */
.pm-slick .slick-arrow:hover { background: #000; } /* hover state */
2.
.slick-slider .slick-prev,
.slick-slider .slick-next { background: #000; } /* normal state */
.slick-slider .slick-prev:hover,
.slick-slider .slick-next:hover { background: #000; } /* hover state */
4.
.pm-slick .slick-dots li button::before { color: #000; } /* Normal sate */
.pm-slick .slick-dots li button::before:hover { color: #000; } /* Hover state */
.pm-slick .slick-dots li.slick-active button:before { color: #000; } /* normal state of active */
.pm-slick .slick-dots li.slick-active button:before:hover { color: #000; } /* hover state of active */
Change #000 to the color which you want.
Cheers,
Foster