UI change in Google Chat dialogs: dividers are no longer visually distinguishable

Google Workspace Developers Q&A
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Hello,

It looks like the UI of dialogs in Google Chat apps has recently changed, and this update negatively impacts dialog readability.

Previously (copied the current payload from UI Kit Builder):

  • Each section in a dialog was visually separated automatically.

  • Explicit dividers added between widgets were clearly visible.

  • The dialog layout was easy to scan and understand.

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Now:

  • Sections are no longer visually separated.

  • Dividers between widgets are barely visible or not distinguishable at all.

  • All content visually blends together, making dialogs harder to read and understand, especially for complex or multi-step dialogs.

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This change significantly affects the UX of apps that rely on structured dialogs with multiple sections.

Does anyone now:

  • Is this a known or intended UI change?

  • Are there recommended alternatives or best practices to restore visual separation between dialog sections?

Thank you.