My wish : feedbro count the global number of article per tag. It will be great to count the number of unread article per tag or just put a flag on a tag with new article !
In "Tags" menu you can see how many articles in total have a specific tag. But if I understand you correctly, you'd like to also see the number of unread articles that have a specific tag? If so, that's perfectly doable and we can add it to the Product Backlog.
