To start with theming … for me the download of this documentation and thread
http://community.wdc.com/t5/WD-TV-Live-Hub-Themes/WDTVLiveHub-ThemeDefinition-v1-0-Here/td-p/373315
was very helpful.
As far as I know you can touch and modify every XML . But it is very helpful to know before working which one(s) to take.
… 20 hours without electricity - oh dear.
To say with the words of AC/DC’s " NO voltage … in big Australia" . But probablity more children in 9months 
