Hello Jan. I also don't see any way to automatically highlight variables in AHK. :-(
So I suggested Halweg to help him with a workaround to manually add variables to the highlighter (keywords3 section). With a VBScript you could simplify it. You only need to press a keyboard shortcut to add the highlighted word in keywords3 section and call "reloadUserHighlighter". This could help halweg (and you would have no work with it). :-P -- <https://forum.pspad.com/read.php?2,74256,74285> PSPad freeware editor https://www.pspad.com