--- a/eric6/Preferences/__init__.py Sun Oct 20 11:19:38 2019 +0200 +++ b/eric6/Preferences/__init__.py Tue Oct 22 19:56:56 2019 +0200 @@ -475,7 +475,8 @@ "PreviewQssFileNameExtensions": ["qss"], "PreviewRestUseSphinx": False, "PreviewMarkdownNLtoBR": True, - "PreviewMarkdownHTMLFormat": "XHTML1", # XHTML1, HTML4, HTML5 + "PreviewMarkdownUsePyMdownExtensions": True, + "PreviewMarkdownHTMLFormat": "HTML5", # XHTML1, HTML4, HTML5 "PreviewRestDocutilsHTMLFormat": "HTML5", # HTML4, HTML5 "VirtualSpaceOptions": QsciScintilla.SCVS_NONE,