diff --git a/data/input/observersCharts.xml b/data/input/observersCharts.xml
index e854e38e85d2003b5620193411a646f1d43dcfc4..9b797ad9b27ae3a59e97e53777227fa21074c9a6 100644
--- a/data/input/observersCharts.xml
+++ b/data/input/observersCharts.xml
@@ -15,31 +15,19 @@
                         <alpha>255</alpha>
                     </bgColor>
                     <pikeColor>
-                        <red>255</red>
-                        <green>0</green>
-                        <blue>0</blue>
-                        <alpha>255</alpha>
-                    </pikeColor>
-                    <shapeColor>
                         <red>0</red>
                         <green>0</green>
-                        <blue>0</blue>
+                        <blue>190</blue>
                         <alpha>255</alpha>
-                    </shapeColor>
-                    <hsiColor>
-                        <red>51</red>
-                        <green>102</green>
-                        <blue>255</blue>
-                        <alpha>255</alpha>
-                    </hsiColor>
-					<textColor>
-						<red>10</red>
-						<green>10</green>
-						<blue>10</blue>
-						<alpha>255</alpha>					
-					</textColor>
+                    </pikeColor>
+                    <textColor>
+                        <red>10</red>
+                        <green>10</green>
+                        <blue>10</blue>
+                        <alpha>255</alpha>					
+                    </textColor>
                     <margin>0</margin>
-					
+                    <hsiMaxValueThreshold>0.5</hsiMaxValueThreshold>        			
                 </pikelake.environment.Movement2DWithinShapeObserver>
                 <fr.cemagref.observation.observers.jfreechart.TemporalSerieChart>
                     <graphType>LINE</graphType>