This is an issue for me too. I don't recall any other framework (at least that I've used) using +/- keys for collapse/expand. It's always left/right arrow keys, which regardless of tradition or incumbency, I feel is the most practical and usable.
I tried to apply Damian's patch to gtk2-2.24.13 today and it wouldn't apply.
I've updated it so that it does work with 2.24.13; new patch: attached.
I've tested it on Arch Linux and it works beautifully. Thanks Damian!
This is an issue for me too. I don't recall any other framework (at least that I've used) using +/- keys for collapse/expand. It's always left/right arrow keys, which regardless of tradition or incumbency, I feel is the most practical and usable.
I tried to apply Damian's patch to gtk2-2.24.13 today and it wouldn't apply.
I've updated it so that it does work with 2.24.13; new patch: attached.
I've tested it on Arch Linux and it works beautifully. Thanks Damian!