In Attributes Mode, there are four selectable Browser Filters, which display Category and three context-sensitive Attributes for searches based on the tags that have been added to the sounds. When a Category or an Attribute has been changed from All, the title changes to blue, to let you know it is filtered.
You can right-click on the Attribute Types to make a different selection from the list.
Sound Match, on the other hand, lets you find sounds that are similar with a simple click. Sound Match analyzes the tags of every sound and finds others with similar characteristics to the one currently loaded.