In the latest version, there is now suddenly an ugly red frame in the editor when the legacy Markdown editor is used. This particularly annoys me because I use the legacy Markdown editor to avoid another problem, see New line unintentionally with empty line in list in markdown editor. Was the red border added intentionally? I couldn't find anything about it in the change log. Is there a way to get rid of the red border and continue using the legacy Markdown editor at the same time?
