Update to Symbol Selector

[JakeKrall]

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.