[xmonad] Remove outside borders from windows

[wagnerdm at seas.upenn.edu]

Quoting Zach Hirsch <zhirsch at umich.edu>:

> be due to the window borders; using NoBorders fixes this, but it
> also removes the borders _between_ windows, which I don't want.
> Is there some way to remove just the outside borders?

There currently is not. xmonad ships out to X11 for drawing borders,  
and the borders you can ask X11 to draw are quite rudimentary. If you  
want to implement this, you have basically two choices:

1. make a layout modifier that creates new windows on each side of all  
the current windows and draws in them (similar to how tabbed layouts  
currently work)
2. overhaul xmonad to become a reparenting window manager and draw in  
the parent window

Neither of them looks very simple to me. =)

~d