Hi @ihou,
Thank you for the suggestion, that’s a great point.
We’ve now added Content Background options for Hover and Active states, along with a Transition Duration control.
The updated widget will be published within 24 hours. After that, please delete and reinstall the widget from the Unlimited Elements dashboard to receive the latest version.
Once updated, you can find the new options here:
Post Grid > Style > Content > Hover / Active tabs
Post Grid > Content > General > Transition Duration
This should eliminate the need for custom CSS for background hover effects.
Thanks again for the valuable feedback!