Färg på railen

Lite sent kanske men prova detta.

set rail0 "color 0; set rrail vstr rail1"
set rail1 "color 1; set rrail vstr rail2"
set rail2 "color 2; set rrail vstr rail3"
set rail3 "color 3; set rrail vstr rail4"
set rail4 "color 4; set rrail vstr rail5"
set rail5 "color 5; set rrail vstr rail6"
set rail6 "color 6; set rrail vstr rail0"
vstr rail0
set rrail vstr rail0