The Symbol Selector Search box was a huge help. But, why have another dialog box, Style References..., to toggle on/off symbol categories. Make the Symbol Selector contain all Styles/categories and have them expandable and collapsable. Retain the consistency with the (+ and - ) next to each category like other windows tree listings. Example: + Business (expanded)
+ Civic + Esri + Survey This way allows one to quickly scan through visually w/out so much scrolling and eliminates the useless Style References dialog.