diff --git a/src/draw.c b/src/draw.c
index 620a12cc..efa2143e 100644
--- a/src/draw.c
+++ b/src/draw.c
@@ -1887,11 +1887,11 @@ static void set_thick_waves(int what, int wcnt, int wave_col, Graph_ctx *gr)
   if(what) {
       if(gr->hilight_wave == wcnt)
          XSetLineAttributes (display, xctx->gc[wave_col],
-            3 * INT_WIDTH(xctx->lw) ,LineSolid, LINECAP , LINEJOIN);
+            INT_WIDTH(2.4 * gr->linewidth_mult * xctx->lw) ,LineSolid, LINECAP , LINEJOIN);
   } else {
       if(gr->hilight_wave == wcnt)
          XSetLineAttributes (display, xctx->gc[wave_col],
-            (int)(xctx->lw) ,LineSolid, LINECAP , LINEJOIN);
+            INT_WIDTH(gr->linewidth_mult * xctx->lw) ,LineSolid, LINECAP , LINEJOIN);
   }
 }
 
diff --git a/xschem_library/ngspice/solar_panel.sch b/xschem_library/ngspice/solar_panel.sch
index 48e794c1..b73dbe9c 100644
--- a/xschem_library/ngspice/solar_panel.sch
+++ b/xschem_library/ngspice/solar_panel.sch
@@ -65,7 +65,9 @@ divx=8
 node="panel
 led" unitx=m
 color="7 4"
-jpeg_quality=20}
+jpeg_quality=30
+linewidth_mult=2.0
+hilight_wave=-1}
 B 2 1260 -390 1680 -220 {flags=graph 
 y1 = 0
 y2 = 6.7
@@ -79,7 +81,8 @@ color="7 4 6"
 node="i(vpanel)
 i(vled)
 \\"R.Avg. I(vpanel); i(vpanel) 20u ravg()\\""
-jpeg_quality=20}
+jpeg_quality=30
+linewidth_mult=2.0}
 B 2 1260 -750 1680 -560 {flags=graph 
 y1 = -8.9e-05
 y2 = 100
@@ -96,7 +99,8 @@ node="\\"Panel power; i(vpanel) v(panel) *\\"
 \\"Avg.Pan. Pwr; i(vpanel) v(panel) * 20u ravg()\\"
 \\"SUN %; sun 100 *\\""
 hilight_wave=-1
-jpeg_quality=20}
+jpeg_quality=30
+linewidth_mult=2.0}
 B 2 1260 -940 1680 -750 {flags=graph 
 y1 = 0
 y2 = 1
@@ -114,7 +118,8 @@ hilight_wave=-1
 digital=0
 ypos1=0.00261891
 ypos2=0.51596
-jpeg_quality=20}
+jpeg_quality=30
+linewidth_mult=2.0}
 B 2 1260 -1140 1680 -950 {flags=graph 
 y1 = 0
 y2 = 1
@@ -133,7 +138,8 @@ ypos1=0.00261891
 ypos2=0.51596
 color=8
 node="\\"CTRL1 Duty cycle; ctrl1 20u ravg()\\""
-jpeg_quality=20}
+jpeg_quality=30
+linewidth_mult=2.0}
 B 18 85 -840 340 -655 {}
 A 5 340 -840 5.590169943749475 243.434948822922 360 {fill=true}
 P 7 6 415 -655 360 -811.25 355 -825 342.5 -840 330 -845 85 -855 {}