github.com.dark-mode.css

/*@media (prefers-color-scheme: dark) {*/



    html {
	filter: invert();
    }

    img, svg {
	xopacity: 0.75;
	filter: invert();
	transition: opacity 500ms ease-in-out;
    }

    img:hover {
	opacity: 1;
    }

    .IssueLabel {
	filter: invert();
    }


    .State {
	filter: invert();
    }

    .Header {
	filter: invert();
    }

    .Header img {
	filter: none;
    }

    .filter-item.selected, .filter-item[aria-current]:not([aria-current=false]), .filter-item[aria-selected=true] {
	filter: invert();
    }

    .repository-content .btn {
	filter: invert();
    }
/*}*/