diff --git a/Graph_Renderer/Coloring.cs b/Graph_Renderer/Coloring.cs
index 6e0d438..0ce22ae 100644
--- a/Graph_Renderer/Coloring.cs
+++ b/Graph_Renderer/Coloring.cs
@@ -20,14 +20,14 @@ public static class Coloring
         { HighwayType.trunk, new Pen(Violet, 3) },
         { HighwayType.primary, new Pen(Yellow , 3) },
         { HighwayType.secondary, new Pen(Aqua ,2) },
-        { HighwayType.tertiary, new Pen(Black ,2) },
+        { HighwayType.tertiary, new Pen(LightYellow ,2) },
         { HighwayType.unclassified, DefaultPen },
         { HighwayType.residential, DefaultPen },
         { HighwayType.motorway_link, new Pen(BlueViolet, 2) },
         { HighwayType.trunk_link, new Pen(Violet, 2) },
         { HighwayType.primary_link, new Pen(Yellow , 2) },
         { HighwayType.secondary_link, new Pen(Aqua ,1) },
-        { HighwayType.tertiary_link, new Pen(Black ,1) },
+        { HighwayType.tertiary_link, new Pen(LightYellow ,1) },
         { HighwayType.living_street, DefaultPen },
         { HighwayType.service, DefaultPen },
         { HighwayType.pedestrian, new Pen(ForestGreen, 1) },