Using Theme Builder- Navigator frame Change the background color/Image

[Dinethri ASP]

Using Theme Builder how to change the background color or add an image to the ServiceNow Navigator Frame [All, History, Favorite, Workspace, Admin]

Steps to reproduce:

Step 1 involves using Theme Builder to set the Theme Pack 1 for the website.
However, we cannot customize the color or theme image for the navigator frame using the theme builder.

Currently, the navigator frame appears in white color, but we would like to customize it as shown in the attached images.

Please look at the attached images

1 Expected Result - This is the expected outcome for the navigator frame
2 Actual Result - but we are getting a white color navigator

The first image is the expected result, whereas the second image shows the actual result with the white color navigator.

Our goal is to customize the navigator frame as well.

[SNAdmin47]

Did you get anywhere with this @Dinethri ASP ? I'm just hitting the same issue... I've applied a different color on the sub-prod instances to avoid mistaking the instance I'm working on (which was nice and simple tbf), but I'm curious as to whether there's a capability to change the background color on the application navigator in theme builder without having to go into the styles and manually changing the CSS there. It's not essential but would be nice.