Is there a simple way to do this?
I want to add some theme specific code to my personal.rc, along the lines of

I don't think the syntax I've used is right, I suppose thats another thing I am asking.

I know $ThemeDir$ would have the folder name of the theme, which is what I need, but does it store the full path and if so, how can the theme name be retrieved from this?

Thanks.

there's no string comparison yet in the core, only integer and boolean, why not add the code you want to execute in the themes, instead of the personal file.

anyways, to get the name of the theme use themename

just do something like:
if it exists, it is include; if it doesn't, it is not :)