If typescript is close enough to an existing language you can make a custom filetype, see the manual.
If typescript is not close enough to another language first you need to have a lexer added to the [Scintilla](http://www.scintilla.org/) editing widget then if needs to be integrated into Geany and a filetype created. -- You are receiving this because you are subscribed to this thread. Reply to this email directly or view it on GitHub: https://github.com/geany/geany/issues/1449#issuecomment-289914093
