Adsense ad units can now be customized by changing the font from the default to Arial, Verdana and Times. Although the choice is limited to only 3 fonts it is still useful for users for matching the ad unit font to their web application font.
According to Google blog this option is only available to Latin-character languages. To access the new options, look for Font section in Adsense setup, you can use either standard Adsense font family or use any of the three Arial, Verdana and Times New Roman. You can set a default font type for your account from Ad Display Preference option in My Account >> Account Settings >> Ad Display Preference.
