When i select category "Hardware" the "number" filed should change into red color

[Dr Atul - LNG]

Hi @SrinivasP409528 

All these links are helpful

https://www.servicenow.com/community/developer-forum/how-do-i-change-the-background-color-of-a-field...

https://www.servicenow.com/community/itsm-forum/how-to-change-field-color-based-on-the-field-value-c...

https://www.servicenow.com/community/developer-blog/make-choice-field-color-change-based-on-category...