grid = key=master,group=grid,depth=1,widthcm=4.5,heightcm=4.5,gcell=20, \
       xmarg=1,ymarg=1,shrink=false,rounded=true,                       \
       border_thickness=very thin,border_color=gray20,                  \
       gback_color=white,gline_thickness=very thin,gline_color=white
 
swarmpath = key=,group=,depth=100,begtime=0,endtime=0,nowtime=0
 
frame = key=framekey,group=frame,depth=100,xl=-40,xh=40,yl=-40,yh=40
 
label = key=label_north,group=frame,depth=100,label=N, \
        label_color=black,label_size=tiny,x=0,y=37.5
 
label = key=label_east,group=frame,depth=100,label=E,label_color=black, \
        label_size=tiny,x=37.5,y=0
 
label = key=label_south,group=frame,depth=100,label=S, \
        label_color=black,label_size=tiny,x=0,y=-37.5
 
image = key=ipf1,group=ipfs,depth=800,x=0,y=0,image_size=4, \
        image_file=scn_pngs/ipf.png
 
vessel = key=center_ship,group=frame,depth=900,x=0,y=0,hdg=45,    \
         body_type=kayak,length=8,wid_mbody=3.2,wid_stern=2.172,  \
         pct_mbody=0.5,line_color=black,line_thickness=very thin, \
         fill_color=white
 
line = key=line_east_west,group=frame,depth=900,x1=-36,y1=0,x2=36,y2=0, \
       line_color=white,line_style=solid,line_thickness=very thin
 
line = key=line_north_south,group=frame,depth=900,x1=0,y1=38,x2=0, \
       y2=-38,line_color=white,line_style=solid,                   \
       line_thickness=very thin
 
point = key=flag_red,group=playing_field,depth=904,x=0,y=0, \
        point_size=0.01,point_color=white
 
circle = key=key_8,group=newborn,depth=950,x=0,y=0,radius=35, \
         line_color=black,fill_color=empty,line_style=solid,  \
         line_thickness=thin
 
label = key=label_west,group=frame,depth=990,label=W,label_color=black, \
        label_size=tiny,x=-38,y=0