$def_style my-frame color blue
$def_style s1 color red
$def_style s1 lw 10
$def_style s2 color green
$def_style s2 lw 2

$style my-frame
0 0
0 200
200 200
200 0
0 0

$style s1
0 50
200 50

$style s2
0 150
200 150