Salsa is the name of the collaborative development server for Debian and is the replacement for the now-deprecated Alioth service.

To make it easier to show the world that you use Salsa, I've created a number of Github-esque ribbons that you can overlay on your projects' sites by copying & pasting the appropriate snippet into your HTML.

For example:

You can find them, with instructions, here:

If you're not satisfied with one of the colours, the original source is available.