As part of our ongoing effort to provide ad designs that will improve results for both advertisers and publishers, we now offer themed ad units; ad units that display themed colours and graphics during holidays and special events. You can view examples of themed ad units by visiting our Ad Formats page.
Whenever themed ad units are available, we will display them only to users in the appropriate locations, as determined by user IP address. For example, Fourth of July-themed ads would be visible only to users located in the U.S. while users throughout the world might see ads with a New Year's Eve theme.
You can enable or disable themed ad units by following these steps:
1. Log in to your account at www.google.com/adsense.
2. Go to the My Account tab.
3. On the Account Settings page, scroll down to the 'Ad Type Preferences' section and click 'Edit.'
4. Depending on your preference, tick or untick the box next to 'Enable themed ad units when available.'
5. Click 'Save changes.' Your selection will apply to all your AdSense ad units.
Nothing for the Xmas season though as far as I can tell.







