diff --git a/OutlawEditor/src/main/java/org/badvision/outlaweditor/apple/Palette.java b/OutlawEditor/src/main/java/org/badvision/outlaweditor/apple/Palette.java
index 747e82dc..c7a30013 100644
--- a/OutlawEditor/src/main/java/org/badvision/outlaweditor/apple/Palette.java
+++ b/OutlawEditor/src/main/java/org/badvision/outlaweditor/apple/Palette.java
@@ -77,14 +77,14 @@ public abstract class Palette {
     }
 
     public static double distance(int c1[], int c2[]) {
-        double rmean = ( c1[0] + c2[0] ) / 2.0;
+        double rmean = ( c1[0] + c2[0] ) / 512.0;
         double r = c1[0] - c2[0];
         double g = c1[1] - c2[1];
         double b = c1[2] - c2[2];
-        double weightR = 2.0 + rmean/256.0;
-        double weightG = 4.0;
-        double weightB = 2.0 + (255.0-rmean)/256.0;
-        return Math.sqrt(weightR*(r*r) + weightG*(g*g) + weightB*(b*b)) / 1.73167;
+        double weightR = 2.0 + rmean;
+        double weightG = 2.0;
+        double weightB = 3.0 - rmean;
+        return Math.sqrt(weightR*(r*r) + weightG*(g*g) + weightB*(b*b)) / 1.5275;
     }
     
     public static double distance_linear(int color[], int test[]) {
diff --git a/OutlawEditor/src/main/java/org/badvision/outlaweditor/ui/impl/ImageConversionWizardController.java b/OutlawEditor/src/main/java/org/badvision/outlaweditor/ui/impl/ImageConversionWizardController.java
index 14dc587c..97e84737 100644
--- a/OutlawEditor/src/main/java/org/badvision/outlaweditor/ui/impl/ImageConversionWizardController.java
+++ b/OutlawEditor/src/main/java/org/badvision/outlaweditor/ui/impl/ImageConversionWizardController.java
@@ -329,7 +329,7 @@ public class ImageConversionWizardController implements Initializable {
                 0, 3, 5, 1, 0,
                 0, 0, 0, 0, 0
         );
-        setDivisor(17);
+        setDivisor(19);
     }
 
     @FXML
@@ -339,8 +339,7 @@ public class ImageConversionWizardController implements Initializable {
                 0, 0, 3, 2, 0,
                 0, 0, 0, 0, 0
         );
-//        setDivisor(8);
-        setDivisor(10);
+        setDivisor(11);
     }
 
     @FXML
@@ -350,7 +349,7 @@ public class ImageConversionWizardController implements Initializable {
                 3, 5, 7, 5, 3,
                 1, 3, 5, 3, 1
         );
-        setDivisor(50);
+        setDivisor(57);
     }
 
     @FXML
@@ -360,7 +359,7 @@ public class ImageConversionWizardController implements Initializable {
                 2, 4, 8, 4, 2,
                 1, 2, 4, 2, 1
         );
-        setDivisor(44);
+        setDivisor(50);
     }
 
     @FXML
@@ -370,7 +369,7 @@ public class ImageConversionWizardController implements Initializable {
                 0, 1, 1, 1, 0,
                 0, 0, 1, 0, 0
         );
-        setDivisor(7);
+        setDivisor(9);
     }
 
     @FXML
@@ -380,8 +379,7 @@ public class ImageConversionWizardController implements Initializable {
                 2, 4, 8, 4, 2,
                 0, 0, 0, 0, 0
         );
-        setDivisor(34);
-//        setDivisor(32);
+        setDivisor(40);
     }
 
     @FXML
@@ -391,7 +389,7 @@ public class ImageConversionWizardController implements Initializable {
                 2, 4, 5, 4, 2,
                 0, 2, 3, 2, 0
         );
-        setDivisor(34);
+        setDivisor(37);
     }
 
     @FXML
@@ -401,7 +399,7 @@ public class ImageConversionWizardController implements Initializable {
                 1, 2, 3, 2, 1,
                 0, 0, 0, 0, 0
         );
-        setDivisor(18);
+        setDivisor(19);
     }
 
     @FXML
diff --git a/OutlawEditor/src/test/java/org/badvision/outlaweditor/test/ImageDitheringTest.java b/OutlawEditor/src/test/java/org/badvision/outlaweditor/test/ImageDitheringTest.java
index e3f0b784..c528a5da 100644
--- a/OutlawEditor/src/test/java/org/badvision/outlaweditor/test/ImageDitheringTest.java
+++ b/OutlawEditor/src/test/java/org/badvision/outlaweditor/test/ImageDitheringTest.java
@@ -202,11 +202,11 @@ public class ImageDitheringTest {
         };
     }
 
-    private void configureBrendanDither(ImageDitherEngine ditherEngine) {
+    private void configureSierraLite(ImageDitherEngine ditherEngine) {
         int[][] coefficients = new int[][]{
-            {0, 8, 0}, {0, 16, 4}, {0, 32, 8}, {32, 16, 4}, {24, 8, 0}};
+            {0, 0, 0}, {0, 1, 0}, {0, 1, 0}, {2, 0, 0}, {0, 0, 0}};
         ditherEngine.setCoefficients(coefficients);
-        ditherEngine.setDivisor(240);
+        ditherEngine.setDivisor(5);
     }
 
     private void fillColor(WritableImage img, Color color) {
@@ -219,7 +219,7 @@ public class ImageDitheringTest {
 
     private WritableImage getTestConversion(ImageDitherEngine dither, WritableImage source) {
         dither.setSourceImage(source);
-        configureBrendanDither(dither);
+        configureSierraLite(dither);
         dither.dither(true);
         return dither.getPreviewImage();
     }