;to run: `/load -rs grey.mrc`, then `/grey`
alias grey { var %s $window(-1).w $window(-1).h
window -dak0pfB +b @s 0 0 %s
drawrect -nrf @s $rgb(99,99,99) 0 0 0 %s }
on *:KEYDOWN:@s:27:window -c @s