Not working. Eror: The control sequence at the end of the top line of your error message was never \def'ed.

[dflvunoooooo]

This project is a really good idea! I have been searching and testing for hours until I found this project. Generating a figure with the example code works, but the inclusion in latex sadly does not. Latex throws the following error multiple times:

Finished to include the file. (./test_plot.pgf
! Undefined control sequence.
<recently read> \mathdefault 
             
l.93 ...fi}\catcode`\%=\active\def%{\%}$\mathdefault
                                                  {0}$}}%
The control sequence at the end of the top line
of your error message was never \def'ed. If you have
misspelled it (e.g., `\hobx'), type `I' and the correct
spelling (e.g., `I\hbox'). Otherwise just continue,
and I'll forget about whatever was undefined.

! Undefined control sequence.
<recently read> \mathdefault