Comment 3 for bug 709569

Upon reading the comments a second time I'm not sure what exactly is proposed here. I think it might be either of the three:

1. Show delete icon on hover, like the starring icon
2. Show button-like bevel on hover
3. Show button background and borders on hover

Please clarify which one you have in mind. I wonder if making it look like a button might be a bit odd, perhaps a "highlight" like icons in a file manager, would be another option?