diff --git a/IV/layer2img.py b/IV/layer2img.py
index 196a9f5..0f3c42a 100644
--- a/IV/layer2img.py
+++ b/IV/layer2img.py
@@ -6,6 +6,8 @@ import matplotlib.pyplot as plt
 
 from matplotlib import rc
 
+#CMAP = 'Set3'
+CMAP = 'tab20c'
 INCH = 25.4  # mm
 BOUNDS = ('xmin', 'ymin', 'xmax', 'ymax')
 BLACK, GREEN, ORANGE, PURPLE = '#000000', '#1b9e77', '#d95f02', '#7570b3'
@@ -58,9 +60,9 @@ def main():
     group1 = read_layer(args.group1_table, args.group1_where)
     group2 = read_layer(args.group2_table, args.group2_where)
     group3 = read_layer(args.group3_table, args.group3_where)
-    c1 = {'cmap': 'coolwarm'} if args.group1_cmap else {'color': BLACK}
-    c2 = {'cmap': 'coolwarm'} if args.group2_cmap else {'color': ORANGE}
-    c3 = {'cmap': 'coolwarm'} if args.group3_cmap else {'color': GREEN}
+    c1 = {'cmap': CMAP} if args.group1_cmap else {'color': BLACK}
+    c2 = {'cmap': CMAP} if args.group2_cmap else {'color': ORANGE}
+    c3 = {'cmap': CMAP} if args.group3_cmap else {'color': GREEN}
 
     rc('text', usetex=True)
     fig, ax = plt.subplots()
diff --git a/IV/mj-msc.tex b/IV/mj-msc.tex
index b138965..3ac66e2 100644
--- a/IV/mj-msc.tex
+++ b/IV/mj-msc.tex
@@ -220,6 +220,13 @@ and explaining the author's desiderata for a detailed description.
 Step illustrations of the following sections are extracted from the automated
 test cases.
 
+Bends are illustrated using the following algorithm:
+
+\begin{itemize}
+    \item Join the first and last vertices of the line, creating a polygon.
+    \item Color the polygons using a diverging color scheme.
+\end{itemize}
+
 \section{Definition of a Bend}
 
 \begin{figure}[H]