Microsoft Bing announced on Twitter that they are rolling out Bing Themes to the Bing search results pages. The company said “you can now personalize your search experience with 7 colorful themes on Microsoft Bing’s web search.”
You should be able to access the themes at the top right of the Bing menu bar:
Here are more screen shots:
We’re excited to introduce Bing Themes to our search pages! ✨
— Microsoft Bing Dev (@MSBing_Dev) June 4, 2021
Forum discussion at Twitter.