Launcher icon always 117*117

Hi ,

I have made a samsung application which runs fine on my samsung tv.

but i am having problem with my launcher icon , whenever i am browsing a launcher icon from my config.xml it always reduces its size to 117*117 that is why launcher icon is not looking good in quality compared to other applications.

what am i doing wrong ? or how can i import 512*512 size launcher icon from config.xml , need help

thank you.