Hi Jan, > It does: nothing. What I changed is that I tried to remove everything that > had to do with comments (as I want to style the whole panel). I haven't tested, but I suspect it won't work that way because editor:GetEndStyled() doesn't return what you need for this function to work. You need to attach an event handler to editor:Connect(wxstc.wxEVT_STC_UPDATEUI, function(event) end) or editor:Connect(wxstc.wxEVT_STC_STYLENEEDED, function(event) end) events; at that time GetEndStyled() should return the correct value needed for that function to work. Scintilla documentation has bit more information, although the styling process is missing some details: http://www.scintilla.org/ScintillaDoc.html#SCN_STYLENEEDED I'd try to do this in three steps: 1. Take unmodified MarkupStyle and make it work for the text in Reference panel. It will require several things: (1) attaching an event handler (as described above); (2) calling MarkupStyle with the right parameters, and (3) applying styles to your editor (see StylesApplyToEditor). These styles will only be applied to markup in comments. 2. Provide "fake" editor.spec.iscomment to make it work with markup not in comments. You'd need to set editor.spec.iscomment[style] to true for all the styles you want to style it on; the simplest way is to set it to "true" for values 0..30 (at least for now). 3. Update markup symbols to make it work for your markup (similar to what you've done). Since UPDATEUI and STYLENEEDED can't be triggered directly, which makes it a bit difficult to test, you can use editor:Colorise(startpos, endpos) method to force restyling of a fragment of the document. Please keep me updated as I'm interested in getting this to work, but don't have time to try myself at the moment. Thank you. Paul.