For the GUI to have a consistent look across different icon themes, you should stick with either the symbolic icon set (as is recommended for GNOME applications) or the regular icon set.
In header-bar.py for instance, it seems that you're using (perhaps unintentionally) a mix of symbolic and regular icons.
I would recommend changing the header-bar to use only symbolic icons. Problematic lines include:
For the GUI to have a consistent look across different icon themes, you should stick with either the symbolic icon set (as is recommended for GNOME applications) or the regular icon set.
In
header-bar.py
for instance, it seems that you're using (perhaps unintentionally) a mix of symbolic and regular icons.I would recommend changing the header-bar to use only symbolic icons. Problematic lines include:
Simply append
-symbolic
to each icon name listed above to resolve the issue.