Hi oBFusCATed,
Thank you very much in advance. Yes I actually found the respective main patch used to push that into Scintilla. It is on the following website https://sourceforge.net/p/scintilla/feature-requests/765/?page=0 (https://sourceforge.net/p/scintilla/feature-requests/765/?page=0)
I actually admire how the guy insisted on adding the feature until it is implemented in Scintilla! Patch 14 should be the file to download. The Scintilla option is:
SCI_MARKERENABLEHIGHLIGHT
The option to be added to the editor, I think, is: [editor:MarkerEnableHighlight(bool enabled) -- Enable/disable highlight for current folding block (smallest one that contains the caret)]. This can be found in Scintilla's API documentation here https://www.scintilla.org/PaneAPI.html (https://www.scintilla.org/PaneAPI.html)
I also found the same option in wxWidgets here: https://docs.wxwidgets.org/trunk/classwx_styled_text_ctrl.html#aba8bda36ef191f934608aa4a4280ee44 (https://docs.wxwidgets.org/trunk/classwx_styled_text_ctrl.html#aba8bda36ef191f934608aa4a4280ee44)
I hope this helps more with the implementation. Thank you very much for your help with this!