KennyT

You just need to remove the _string from set_string in preset.py

You can modify the existing file at /var/lib/flatpak/app/com.github.GradienceTeam.Gradience.Devel/current/active/files/lib/python3.11/site-packages/gradience/backend/theming/

https://github.com/lavafroth/Gradience/blob/fix-set-gtk3-theme/gradience/backend/theming/preset.py download this version of the file