mr_mischief - Thanks for your comprehensive post which outlines a whole spectrum of options!

Can I just ask a newbie question: How exactly does Perl handle the display of graphics? As far as I understand, essentially, I have a Perl programme determine the position, size and colour of a pixel. And then? What exactly is a canvas? Is it a separate programme with an API? ... Sorry, I am just new to this whole area.

Thanks again and cheers -

Pat