My Design Studio team and I are currently customizing the Bb GUI for our client. We are building off the Bb 2012 theme since the Bb 2016 theme, although available to us, lacks certain vital features that are required by our client (like the ability to create unique course themes). We uploaded a test top frame image in Bb (via the Customize Default Theme under Brands and Themes). Unfortunately, we are unable to replace the test top frame image with our intended image - upon loading the top frame image, there is no Remove or Browse button available to replace the image. We have already committed several CSS changes to our current Bb theme and don't want to create a new theme in order to upload a new top frame image. It's ridiculous if Bb expects us to a create new theme for every attempt to replace the top frame image.
I have attached an image of what we want to change and what we currently see in under the section, Customize Default Brand.
Will appreciate any feedback to help us move forward.