All the rendering scripts are not working under Fedora 31+
Created by: wangxa
The inkscape installed in Fedora 31+ is greater than 0.92, which does not support -e and --export-png any more, see this. So I think you have to make a check of the version of inkscape and change all the --export-png to --export-file if necessary.
By the way, your cursor themes have the same problem.