[xmonad] should keyboard focus and window management focus be separate?

[Geoff Reedy]

The discussion around the patch for issue 177 is leading me to suspect
that xmonad may need to have different focus indicators for keyboard
focus and window management focus. Most of the time, there'd be no
difference but when a window is offered focus with WM_TAKE_FOCUS it
might decline to take focus or even place the focus within a different
top level window. It is desirable, however, to treat the window as the
focused window for the purposes of window manipulation. Does anyone know
if any other tiling window managers have tackelled this issue and what
they do in this case? 

-- Geoff Reedy