- Render Default Cube.
- Go to Rendering workspace.
- Select either the Slot1, View Layer or Combined drop downs.
You should get this:
If you flip the header to the bottom, you get this:
I have looked around and the issue lies in Blender\Editors\space_image\image_buttons.c
This Diff resolves this particular, within this workspace, and brings it into line with the rest of Blender.
Additionally, the Slot information is displayed in Slot 8 -> Slot 1 order. If it would be better in the order of Slot 1 -> Slot 8, let me know and i'll submit another patch.