Please submit Bug reports under

 https://rt.cpan.org/Dist/Display.html?Name=App-GUI-Harmonograph (preferred)
 
 or if you like
 
 https://github.com/lichtkind/App-GUI-Harmonograph/issues
 

Patches are welcome under:

 https://github.com/lichtkind/App-GUI-Harmonograph/pulls (preferred)
 
 but arrive also via 
 
 https://rt.cpan.org/Dist/Display.html?Name=App-GUI-Harmonograph


Also feature Requests are welcome but please read the TODO first.