Investigate ways to do text shadowing #14
Description
... that gets along with printToPDF
From @alexcjohnson in #6 :
polar text gets a white shadow behind it, which seems to get corrupted by printToPDF... but it looks like Batik is dropping the shadow entirely, which is arguably less bad but still not correct. Parcoords is supposed to have a similar shadow on tick labels, which it appears both printToPDF and Batik miss. Would be worth spending some time figuring out if there's a more robust way to apply this shadowing.