Can't save customise theme

I don't know if it's only me but whenever i make a customise theme and save i won't see anything?! It seems like it only use the three themes dark, light and solarised!

Hi there, this is probably an issue with write permissions! When restructuring everything, calla's configs were moved from $XDG_CONFIG_HOME to /usr/share/calla/, which requires root write permissions. In the future (likely months away, whenever I get motivation to work on this again) I'll have this fixed by moving custom themes to a user cache directory. Until then, you can create and edit themes directly in /usr/share/calla/desktop/color/.