Just using the "label" field here won't survive localization. I'd suggest adding another parameter to __labeled_summary which is the class to add and then passing that through unadorned.

We can also generalize the .draftlabel class. There are three kinds of labels we add on the summary: draft, submitted, and discarded. Each of these could have its own CSS class (.label-draft, .label-discarded, .label-submitted).

Just one more change:

This one needs to be updated too, plus you need to add a label-submitted entry to the CSS file.

Looks good. Pushing to master as 6d00cad.

Ship It!