.wm-scroll-away-hero-section--generated {
--wm-scroll-away-hero-icon-size: 32px; /* Icon size */
--wm-scroll-away-hero-icon-color: white; /* Icon color */
}
Or, to hide the scroll icon
.wm-scroll-away-hero-section--generated .wm-scroll-away-hero-icon {
display:none
}