For newly created users, the "Custom" theme is not selected automatically in the backend.

Sachithananda 1 · 3 hours ago

For newly created users, the "Custom" theme is not selected automatically in the backend. Instead, the default ServiceNow "Polaris" theme is applied. The theme must be changed manually.

palanikumar · 2 hours ago

Hi,

You can follow this KB artickle

https://support.servicenow.com/kb?id=kb_article_view&sysparm_article=KB0722337

Thank you,
Palani

Tanushree Maiti · 12m ago

Hi @Sachithananda 1

You can add the theme by default.

Check this community article: Set default (custom) theme in Polaris Next Experience UI

Please Accept the solution if it assisted you with your question & Mark this response as Helpful.
Regards
Tanushree Maiti
ServiceNow Technical Architect
LinkedIn: https://www.linkedin.com/in/tanushreemaiti