Add a 'Search' box to the Theme Browser

Hi,

1. It would be very helpful if you could add a 'Search' box to the Theme Browser in your controls demo application.
2. Another related suggestion -
   Provide some tool that lets the developer tweak the target application's Theme colors (at run-time) untill reaching a satisfactory state.
   The tool can also have some sort of 'Export' function that will make it easy to implement the new theme values.

Thanks!