Removed decimals from % values shown for ImageBlendSlider

Author: goran-w

src/Converters/DoubleConverters.cs

@@ -12,10 +12,10 @@ public static class DoubleConverters
             new FuncValueConverter<double, double>(v => v - 1.0);
 
         public static readonly FuncValueConverter<double, string> ToPercentage =
-            new FuncValueConverter<double, string>(v => (v * 100).ToString("F3") + "%");
+            new FuncValueConverter<double, string>(v => (v * 100).ToString("F0") + "%");
 
         public static readonly FuncValueConverter<double, string> OneMinusToPercentage =
-            new FuncValueConverter<double, string>(v => ((1.0 - v) * 100).ToString("F3") + "%");
+            new FuncValueConverter<double, string>(v => ((1.0 - v) * 100).ToString("F0") + "%");
 
         public static readonly FuncValueConverter<double, Thickness> ToLeftMargin =
             new FuncValueConverter<double, Thickness>(v => new Thickness(v, 0, 0, 0));