The UI looks decent and easy to use. Two suggestions though: 1) The auto-complete search widget could do with keyboard navigation. 2) I think the Icon Generator

The UI looks decent and easy to use. Two suggestions though: 1) The auto-complete search widget could do with keyboard navigation. 2) I think the Icon Generator logo shouldn't link away from the app. There's no "Reset to defaults" button so I assumed clicking the logo would achieve the same thing.