I recently upgraded to 2.14.0.1, and it seems like my 'linkcolor=blue' option in YAML no longer works for pdfs from markdown. I get this error:
~~~ Error producing PDF. ! Undefined control sequence. l.32 \preparecolorset
~~~
I've reproduced this on Mac and linux (both 2.14.0.1). I'm afraid I'm ignorant enough of the details to have no idea how to fix this - any ideas? MWE attached.