It's even more beautiful with the IBM Plex font family. The post buttons also aren't readable with a dark gtk theme because you set the background-color and not the font color. Also, a max text width is a good idea, css max-width property around 30ems or so is usually good. See https://practicaltypography.com/line-length.html for a reference, incidentally written by a schemer—the book/website is running on racket!
At any rate, thanks dev/owner guy, you did a great job and it was long overdue!