I really never knew how many folks were so passionate about cursors!
I'm not sure its so much about cursors as it is G* folks going back on their word and breaking GTK3 applications _again_, just proves that we can't trust 'em, Leopards never change their spots etc etc.
Oh well, my answer is "Don't use dead tortoises as themes, make a proper one you lazy ...." :grin:
Basically a "default" theme is never going to be right for anyone, so it should be as lousy as possible (like default HTML) which Adwaita achieves IMNSHO so all distros should make their own and not be lazy [end rant]
I don't know why Scintilla uses different cursors, possibly to match the behaviour of the initial Windows control it is based on. It tries to be consistent on all platforms.
Perhaps Scintilla should switch to checking the return [here](https://github.com/geany/geany/blob/3a92129d61d4d8e96136e29d4709bb638527be40...) and and falling back to default if fail.