Comment by xvello

Agreed. In the meantime, I use the following uBlockOrigin rules:

    news.ycombinator.com##html:style(filter:invert(100%) hue-rotate(180deg))
    news.ycombinator.com##body:style(background: white)
    news.ycombinator.com##div.toptext:style(color: black)
    news.ycombinator.com###hnmain td[bgcolor="#000000"]