Yeah. A small diamond shape, outline only (not filled in), so it is obviously different.
Here is a preview (it will be included in next update).
http://i.imgur.com/XthC06j.pngDetails:
- I've kept the size of diamonds "proportional" to the amount of the output. That seems better.
- I've shortened the label "(unspent)" in "(U)" (with a contextual help on mouse hover). It's displayed at all times.
