Visual Racks

One of the most requested features of Pyfa is the ability to have visual slot separators like EFT has:

Unfortunately, due to technical limitations of wxPython (the UI toolkit Pyfa uses), it would be a significant undertaking to properly bring this feature to light with the current implementation of Pyfa. Such an undertaking would be better suited during a rewrite of Pyfa, which is currently planned but not started.

In the meantime, there is a workaround that one can use: coloring the background of slots based on rack. This option is available under Preferences > General.