diff --git a/Common/DefaultOptions.h b/Common/DefaultOptions.h
index 3755016d9bf195da99a2c0c468279eef7d3ebac0..31e159de3442d7eca671495d5ca381cc5df6feab 100644
--- a/Common/DefaultOptions.h
+++ b/Common/DefaultOptions.h
@@ -1437,17 +1437,17 @@ StringXColor GeometryOptions_Color[] = {
 #define COLP  PACK_COLOR( 232, 210, 23, 255 )
 #define COLY  PACK_COLOR( 217, 113, 38, 255 )
 
-// blue->yellow
-#define COL0  PACK_COLOR( 9, 3, 103, 255 )
-#define COL1  PACK_COLOR( 35, 0, 111, 255 )
-#define COL2  PACK_COLOR( 60, 0, 114, 255 )
-#define COL3  PACK_COLOR( 83, 0, 114, 255 )
-#define COL4  PACK_COLOR( 105, 1, 109, 255 )
-#define COL5  PACK_COLOR( 126, 10, 102, 255 )
-#define COL6  PACK_COLOR( 145, 21, 93, 255 )
-#define COL7  PACK_COLOR( 163, 34, 82, 255 )
-#define COL8  PACK_COLOR( 179, 50, 69, 255 )
-#define COL9  PACK_COLOR( 193, 67, 57, 255 )
+// dark blue to yellow:
+#define COL0   PACK_COLOR( 9, 3, 103, 255 )
+#define COL1   PACK_COLOR( 35, 0, 111, 255 )
+#define COL2   PACK_COLOR( 60, 0, 114, 255 )
+#define COL3   PACK_COLOR( 83, 0, 114, 255 )
+#define COL4   PACK_COLOR( 105, 1, 109, 255 )
+#define COL5   PACK_COLOR( 126, 10, 102, 255 )
+#define COL6   PACK_COLOR( 145, 21, 93, 255 )
+#define COL7   PACK_COLOR( 163, 34, 82, 255 )
+#define COL8   PACK_COLOR( 179, 50, 69, 255 )
+#define COL9   PACK_COLOR( 193, 67, 57, 255 )
 #define COL10  PACK_COLOR( 207, 85, 44, 255 )
 #define COL11  PACK_COLOR( 219, 104, 32, 255 )
 #define COL12  PACK_COLOR( 229, 124, 22, 255 )
@@ -1459,7 +1459,29 @@ StringXColor GeometryOptions_Color[] = {
 #define COL18  PACK_COLOR( 255, 228, 22, 255 )
 #define COL19  PACK_COLOR( 255, 240, 38, 255 )
 
-// truncated hsv
+// jet:
+// #define COL0   PACK_COLOR( 0, 0, 143, 255)
+// #define COL1   PACK_COLOR( 0, 0, 197, 255)
+// #define COL2   PACK_COLOR( 0, 0, 250, 255)
+// #define COL3   PACK_COLOR( 0, 49, 255, 255)
+// #define COL4   PACK_COLOR( 0, 103, 255, 255)
+// #define COL5   PACK_COLOR( 0, 156, 255, 255)
+// #define COL6   PACK_COLOR( 0, 210, 255, 255)
+// #define COL7   PACK_COLOR( 9, 255, 253, 255)
+// #define COL8   PACK_COLOR( 62, 255, 200, 255)
+// #define COL9   PACK_COLOR( 116, 255, 146, 255)
+// #define COL10  PACK_COLOR( 170, 255, 92, 255)
+// #define COL11  PACK_COLOR( 223, 255, 39, 255)
+// #define COL12  PACK_COLOR( 255, 240, 0, 255)
+// #define COL13  PACK_COLOR( 255, 186, 0, 255)
+// #define COL14  PACK_COLOR( 255, 132, 0, 255)
+// #define COL15  PACK_COLOR( 255, 79, 0, 255)
+// #define COL16  PACK_COLOR( 255, 25, 0, 255)
+// #define COL17  PACK_COLOR( 226, 0, 0, 255)
+// #define COL18  PACK_COLOR( 173, 0, 0, 255)
+// #define COL19  PACK_COLOR( 119, 0, 0, 255)
+
+// truncated hsv:
 // #define COL0  PACK_COLOR(  255, 0, 0, 255)
 // #define COL1  PACK_COLOR(  255, 67, 0, 255)
 // #define COL2  PACK_COLOR(  255, 134, 0, 255)