As part of T75724, many UI layouts are now coded inside large modules (nodes, modifiers, etc).
This has the disadvantage of these modules depending on /editors for simple high-level button code.
An example of this can be seen in rBcfa48c84d06ca8197f86b6d3ceef8a2c7c311a82
A possible solution to this is moving some high-level UI code from editors in its own UI module.
Candidates for such a change are:
UI_icons.h UI_interface_icons.h UI_interface.h UI_resources.h UI_view2d.h ... possible others
Some files editor code should be moved to UI_:
ED_screen.h --> UI_screen.h ED_gizmo_library.h --> UI_gizmo_library.h ED_gizmo_utils.h --> UI_gizmo_utils.h
This task is first meant to gauge if this is something we should do. After then we can move more into the how.