Detect when inside a split?

David Woodfall <[email protected]> Fri, 13 Apr 2018 17:36:12 +0100

Newsgroups	gmane.comp.gnu.screen.user
Message-ID	<20180413163612.GC5924@blackswan>

Is it possible to detect when inside a split so I can use a switch in
my caption string?

I'm using %F to detect if the region has focus and dim the other
window names. This is OK in a split because it hides the other window
names, but when in a single screen with no splits I'd like to make
the list a bit more visible if possible.

TIA