How to change the color of the header line at the top. <<Now ExperienceUI>>

[HS7]

Hi

We want to customize the colors of our Servicenow instances.
Now Experience active now.

We do not find where we can modify the color of the header line at the top.

Please tell me how to change the color of the header line at the top.

[Dr Atul G- LNG]

Check these:

https://INSTANCENAME.service-now.com/now/nav/ui/classic/params/target/%24system_properties_ui.do%3Fs...

[HS7]

@Dr Atul G- LNG 
That's U16, not NowExperienceUI...

[Dr Atul G- LNG]

Oops, sorry. I think you only need to check if this can be done via Theme Builder.

[Dr Atul G- LNG]

https://www.servicenow.com/community/developer-forum/how-do-i-modify-the-color-for-the-heading-in-th...

https://www.servicenow.com/community/next-experience-forum/how-to-update-the-background-header-color...