i saw it in two sites they put background image to the ads and it looks nice is this against TOS? here http://www.seroundtable.com/ and this is what jenstar wrote November 26, 2005 Animated background ad units in AdSense I saw these ad units a few days ago on SERoundtable, but I didn't want to draw more undue attention to them. But now SearchEngineJournal and ThreadWatch have both picked it up. The ad unit is a custom sized ad unit, but instead of a normal static background, these ad units have an animated arrow in the background, drawing a visitor's attention to the ads. Here is screenshots of how they cycle through with the animated arrow pointing out the ads. ThreadWatch points out these are "Made by Barry" of SERoundtable, using this image:
Unless you get specific permission from Google, this will definitely fall into the category of drawing undue attention to ads. You can't get more blatant that arrows moving around I guess this might be a case where they are a premium advertiser perhaps?
I read a while ago something along the lines of if you earn so much you are allowed certain privaliges, Such as, embedding pictures, changing the layout etc. Cant remember what the figure was you need to earn