Bonus lesson icons in Activity.
I just completed the Bonus lesson for French Idioms, but it shows up in my Activity stream with the icon for Basics 1. Is this a bug?
It sounds like a bug to me. I recommend moving this post to the Troubleshooting forum. To do that, just edit your post, at the top of the editing window, click where it says Sections:Duolingo and choose "Troubleshooting"