Color code for Python/Julia

[albop]

Maybe be could agree on a color code to distinguish Python from Julia.

We could use it to alter the CSS of Julia/Python notebooks or to change the way Python/Julia code blocks are displayed in regular posts.

[sglyon]

This should be doable.

I think we would need to alter these lines of the notebook plugin. They are called by the actual plugin here. Maybe we could add an optional argument at the end of the tag that allows us to specify the language. Something like this might work:

{% notebook examples.ipynb cells[start:end] langauge:julia %}

[sglyon]

Looking at this page again, it does look like the python and julia are highlighted correctly (notice the pandas import at the top is correct python highlighting and the keywords for julia are correctly highlighted in the rest of the file), they are just using the same color scheme. Would you prefer that we had a different color scheme for each of them?