I never get any labels on the axis ticks. Since other text (axis labels,
legend) come out ok, I assume this has nothing to do with possibly
broken dependencies, but rather originates from Chart::Clicker itself.
E.g., using the example for stacked lines from
https://github.com/gphat/chart-clicker-examples/blob/master/line/stacked-line.pl,
I get the attached image (whereas the reference version on github shows
a perfectly formatted graph).
For the reference, I'm running under Perl 5.14 on Windows 7.