Hi there! Since the recent major update, I noticed theres's this new 'Sticky Header' added to topic pages. Seen under the top navigation as well as at the top of the page after scrolling down. (see screen snaps below) I can't find where to style it, unless I'm missing something obvious. I could do it by custom CSS, but since it breaks dark themes I believe that at least its colors should be selectable from the theme editor. Thanks in advance!