possible to customize graphs?

This may be asking too much, or else I've just missed something... but is there a way to customize the training graph on the left hand side of my blog?  It would be great if I could get rid of strength minutes, since I never have any... but also it would be super cool if I could choose one or two "sports" on which I log lots of minutes and have them be a different color.  Is this possible?  Or would it take a lot of work to make possible?

Just thought I'd throw it out there.  Thanks!