Debugger styling?

I want to implement a simple debugger, so I need to highlight a current line and details within the line. Question: is there a recommended approach to this? I could just turn on read-only, and use the active line CSS to highlight a line, and a selection or selections to highlight individual items.

Have other people do this before, and is there an example I could look at?

Thanks as always :slight_smile: Ness

The addLineClass method sounds like it might be useful. Or use a gutter marker, as in this demo

Thanks again, Marijn!