Hi:)

...gitpan ...

gitpan was built by automatic software years ago (cpan on github), it isn't updated anymore, and IIRC no mail gets forwarded to the original cpan authors, so there is nobody watching for your pull request

OTOH, the current Tk-ACH maintainer YEWENBIN has github account of his own (wenbinye) and is active on there ... so he'd be the person to contact

and switching to getOpenFile for file selection.

That seems very odd, as it seems to destroy the purpose behind the module , which is to avoid getOpenFile by implementing a different look/feel...