[mythtv] Conversion to libmythui: Info please

[Bill]

Would someone please be kind enough to provide more information on the 
conversion of the UI to use libmythui (aka Ticket #12).  Specifically what 
code is being replaced, and a general overview of the conversion.  I have a 
little difficulty figuring out which functions I should and should not use 
and what code is yet to be ported.

I ask because I am looking at adding some enhancements to the ui code, and 
before I start coding and posting tickets I want to be sure I put the code 
in the right place.

For example, in libmythui, I see MythUIImage and MythImage and also the code 
in libmyth, uitypes.cpp, UIImageType, these seem to parse the same image 
container from the ui XML files.  I assume that MythUIImage is to replace 
UIImageType.  Am I off track?  I see that the main menus use MythUIImage and 
MythImage, but for example mythvideo videogallery.cpp uses UIImageType and 
therefore I assume is yet to be ported.

My first project is to add code to provide an option to mirror images to 
provide for more "eye candy". The code from the Qt examples is not too 
complex and looks feasible.