Ok, you were right. Indeed they decided to change the spinbutton-style in Gtk3 without me noticing. I fixed the code now and I really hope it works, feel free to test from github and let me know!
Ok, you were right. Indeed they decided to change the spinbutton-style in Gtk3 without me noticing.
I fixed the code now and I really hope it works, feel free to test from github and let me know!