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Google Testing Rainbow Effect To AI Mode & Web Tabs

08/04/25
Source: Search Engine Roundtable by barry@rustybrick.com (Barry Schwartz). Read the original article

TL;DR Summary of Google Tests Rainbow Effect on AI Mode and Web Tabs in Search Bar

Google is experimenting with a rainbow color effect on the AI Mode and Web tabs within its search bar interface. This colorful animation aims to highlight and draw attention to specific tabs, primarily the AI Mode, but has also appeared on the Web tab during testing. The feature appears to be a subtle micro-interaction designed to enhance user focus on key search functions. Some speculate the rainbow effect on the Web tab could be an unintended bug rather than a planned design choice.

Optimixed’s Overview: Google’s Subtle UI Experiment with Rainbow Highlights on Search Tabs

Background on Google’s UI Testing

Google continues to innovate its search interface by introducing dynamic visual cues. Recently, a rainbow transition effect was spotted on the AI Mode tab within the search bar, signaling a new approach to guiding user attention.

Details of the Rainbow Effect Implementation

  • The rainbow animation was initially exclusive to the AI Mode tab, creating a colorful, eye-catching highlight.
  • Users and industry watchers have also observed the same effect appearing on the Web tab, expanding the feature’s reach.
  • This effect is likely a micro-interaction aimed at improving the user experience by subtly emphasizing important interface elements.

Community Reactions and Speculations

SEO experts and users have noted this new UI experiment on platforms such as X (formerly Twitter). Some question whether the rainbow effect appearing on the Web tab is intentional or a bug since it was originally intended to spotlight AI Mode exclusively.

Implications for Search Experience

Such visual enhancements could help users more easily identify and switch between different search modes, potentially increasing engagement with Google’s AI-powered features. However, the final implementation and rollout remain uncertain as testing continues.

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