The light gray text on a dark grey background makes this page very hard to read.
Topic on Talk:Wiki Techstorm 2018
The first sentence that tries to grab the reader's attention uses an undefined accronym.
The text is #aaa on #444, which fails even WCAG AA (contrast ratio of 4.19:1). Changing the text colour to #bbb would bump the contrast ratio up to 5.07:1, which passes WCAG AA, and is marginally more readable (although I really don't understand the need to theme the page beyond the ordinary wiki theme...)