Scrollbars seem to be broken in the oxygen-gtk3 package. I'm on Arch Linux, and have both oxygen-gtk2 (v1.4.6-2) and oxygen-gtk3 (v20151211_vgtk3_1.4.1_12_g705b7-1) installed. Firefox recently got updated to use GTK3, and so is now using the oxygen-gtk3 package. But I noticed that the scrollbars are not displaying/working correctly on oxygen-gtk3 - they were working correctly with gtk2. Note that the scrollbar "thumb" is missing. Reproducible: Always Steps to Reproduce: Use Firefox (or any other gtk3 app). Actual Results: Scrollbars don't display correctly. (No "thumb".) Expected Results: Scrollbars should display the same way they do with gtk2.
Created attachment 96148 [details] Scrollbars in oxygen-gtk2
Created attachment 96149 [details] Scrollbars in oxygen-gtk3
I've added screenshots to show what I'm talking about.
*** This bug has been marked as a duplicate of bug 340288 ***
Hi, Thanks for reporting. Now, unfortunately, oxygen-gtk3 has become unmaintained, because it is not supported anymore upstream by latests versions of gtk3. Consequently, bugs will not be fixed, since the code is bound to be abandoned completely next time you update gtk3. See https://bugs.kde.org/show_bug.cgi?id=340288 and https://bugzilla.gnome.org/show_bug.cgi?id=735211 for more details. ... sorry.
Any suggestions on how I might be able to continue using the Oxygen theme on GTK apps? (Oxygen's a gorgeous theme which I've been using for years, and I'd like to continue.) Is there a way to tell GTK3 apps to use the oxygen-gtk2 theme instead?
GTK3 is binary incompatible with GTK2, and it uses CSS to do all its theming now. So no way to use oxygen-gtk2 with GTK3 apps. Your only option is to downgrade GTK3, although some GTK3 apps might require the features introduced in 3.15 and higher.
alternative is to "not use" gtk3 applications ...