I missed the the commit[1] before the previous one I mentioned, which is a pretty cool feature if it does what I think it does. Is this documented yet or is still a work in progress? Is it meant to let the user reorganize/rename the menu items in the Set Filetypes menu?
I notice the default filetypes_extensions.conf has 'Typoscript' in [Groups] which throws a warning on geany -v and that Genie and Scala show up under Compiled in the Set Filetypes Menu which is cool, but there's still a 'Custom Filetypes' menu item that pops out an empty menu.
Cheers, Matthew Brush
[1] http://git.geany.org/geany/commit/?id=6adfb3bcd604b33dc8da1a65eea78f0404bf7a...