Board Thread:Questions and Answers/@comment-180.190.238.242-20130212012722/@comment-6182229-20130213045551

Dunno if it affects the colour of sealstones or not, but the colour of sealstones u get don't mean much unless u can get Red Kiri stone, which for some reason is extremely rare :-/

But restarting is very easy - go to app management, choose the game and delete data.