Changing logo in UI Preview

Hello

OpenNMS is new to me and I am supposed to change the main logo in UI Preview. I have changed the logo in navbar.ftl ,but that doesn’t work for UI Preview.
Kindly let me know the file for header of UI Preview .
I am using opennms-30.0.0

Thanks in advance.

There’s no documented method to change the logo in the UI Preview right now, and the page markup is convoluted enough that I can’t identify the filename in my browser’s Developer Console. Ugh.