Issue with the overshooting and semi-convection

[TheMarcello]

Hello! Trying to plot overshooting I found it was plotting semi-convection instead. I found in the "mesa/const/public/const_def.f90" that the assignments in the "mkipp.py" file did not match. By simply changing them it seems to work fine. (I'll upload the screenshots of the files where I found the assignments).

[orlox]

Thanks for pointing this out. This is an issue that's been hanging around since a couple of MESA versions where the indexing of the mixing regions changed. As a workaround you can manually switch the options in mkipp.py, though for the long term there should be an explicit check on the version number of the history files to decide the coloring of the regions. So keeping this open to fix it in the future.