…but that uses `SCLEX_ASM`. @Azq2 if you really want to use the `SCLEX_AS` lexer, you'll have to add a new builtin filetype to Geany, e.g. modify the source code. AFAIK, the only difference between `SCLEX_ASM` and `SCLEX_AS` is that the former uses `;` for comments, and the latter `#`. We'd probably accept a patch adding that ASM variant.
On a technical note, I wonder why the comment character isn't a lexer property on Scintilla's side… that would be easier for us.