Google adds a seasonal art theme to PMax legacy teams

Seasonal refreshers just got a little faster — Google quietly introduced Asset Group Theming within Performance Max, allowing advertisers to apply seasonal themes to existing legacy groups without rebuilding from scratch.

How does this work. Advertisers can combine a group of assets that work best and use a theme — Google then generates themed image variations and suggests headlines that align with descriptions, while leaving the original group of assets untouched for safe testing.

Cover of available themes.

• Marketing: Sales, Studio/Editor
• Seasons: Winter, Spring, Summer, Autumn
• Traditional Occasions: Christmas, Black Friday/Cyber ​​Monday, Halloween, Valentine’s Day, Easter, Mother’s Day, Father’s Day, Hanukkah, New Year’s, Lunar New Year, and Back to School

Where can you find it. Check out the information in Legacy Groups before the big holidays, or by “Applying a theme to an existing property group” when creating a new one.

Important warning. This is the beginning, not the finished product. The tool uses existing images as a base and adds a themed background — it doesn’t replace videos, and often updates a few headlines to match the theme. Everything still needs to be reviewed and concept tested before going live.

Why do we care. Seasonal creative refreshes have always been one of the most time-consuming parts of campaign management – ​​requiring design resources, rebuilding inventory teams, and risking performance degradation in proven setups. This feature removes much of that friction, allowing teams to align their best players at key moments in minutes rather than days.

An important point. Think of it as a creative assistant, not a designer replacement — but for marketers who handle multiple seasonal peaks throughout the year, the time savings alone make it worth checking out.

First seen. The update was spotted by Google Ads expert Bia Camargo who shared a screenshot on LinkedIn.