Different style on last breadcrumb

<moved this topic here, since I might have posted it wrong first time around>

Hi.

I have a breadcrumb on the site, and I wanted to make the last of the breadcrumbs use a different style than the others before it. I have no idea on how to do this, but it seems it should be fairly easy, yeah?

Ex.
- I have a abreadcrumb that looks like this:
"Home > Teleportation device > Watch".

- "Home" and "Teleportation device" would have class="gray"

- "Watch" would have class="black"

Sounds like a if foreach is at last, then do something else.. no idea on how to do it tho. It seems I'm not as good as I thought when it comes to figuring out PHP. So I'd love all the help I could get.

Thanks!