[dailyanchovy]

This looks very sophisticated, much more complex than MPLG. Very impressive! I also wonder why I didn't come across Veusz while doing market research.

A main goal of MPLG is to KISS so that users would open it up for the first time and they will be able to quickly jot down a plot design. This way they won't feel overwhelmed when needing to quickly create another plot sometime in the future, and be compelled to use MPLG.

Matplotlib is indeed very slow. But if you ever decide to write a matplotlib version of your package, get in touch, I'll explain how I designed MPLG and what you might want to avoid!