The round horn of Google AdSense is decorated
Google AdSense announced recently
The round horn of new ad unit decorates option. A such new option, not be every promulgator is used get, have the person of those need only, the stationmaster with those website equal distribution, can use this type. Same, changeful style also can give an user different experience, in order to reduce aesthetic fatigue. 
The picture comes from at Http://adsense.blogspot.com.