До Google дошло и теперь новая цветовая схема AdSense по умолчанию – без рамки. Всё остальное осталось прежним.

We've found that many publishers prefer the cleaner look of this palette and have also seen that a blended color palette performs better for them -- attracting user interest while still maintaining the distinction between ads and content with the 'Ads by Google' label.

Первым советом почти всех AdSense-мастеров было убрать рамку.