diff --git a/lib/xmet/skew_t.py b/lib/xmet/skew_t.py
index 0c3822e..1731520 100644
--- a/lib/xmet/skew_t.py
+++ b/lib/xmet/skew_t.py
@@ -148,11 +148,14 @@ class SkewTGraph():
                       x: float,
                       y: float):
         cr.save()
+
         cr.set_source_rgba(1.0, 0.2, 0, 0.2)
 
         for temp in range(-140, 140, 10):
             self.draw_adiabat(cr, x, y, temp, PRESSURE_MAX)
 
+        cr.set_source_rgba(0.3, 0.1, 0, 0.2)
+
         for temp in range(-140, 140, 10):
             self.draw_adiabat(cr, x, y, temp, PRESSURE_MAX, True)