Hi
Thanks for a great answer, @NotBoolean! Just want to highlight that it seems that this CSS code no longer works for changing the editor appearance, only the pre-view appearance. According to Theme header css overwritten by the app?, to change the editor appearance, .cm-header- must be replaced by .cm-s-obsidian .HyperMD-header-. I’m totally new to CSS and might be wrong, please correct me if that is so. This change worked for me anyway. Thanks!