tweak text hints

Author: ButchersBoy

MaterialDesignColors.WpfExample/MainWindow.xaml

@@ -4,6 +4,7 @@
         xmlns:wpfExample="clr-namespace:MaterialDesignColors.WpfExample"
         Title="Material Design in XAML" Height="600" Width="800"
         TextElement.Foreground="{DynamicResource MaterialDesignBody}"
+        TextElement.FontWeight="Medium"
         Background="{DynamicResource MaterialDesignPaper}"
         FontFamily="pack://application:,,,/MaterialDesignThemes.Wpf;component/Resources/Roboto/#Roboto">
     <Window.Resources>

MaterialDesignThemes.Wpf/TextField.cs

@@ -38,7 +38,7 @@ public static class TextField
             "HintOpacity",
             typeof(double),
             typeof(TextField),
-            new PropertyMetadata(.23, HintOpacityPropertyChangedCallback));
+            new PropertyMetadata(.48, HintOpacityPropertyChangedCallback));
 
         /// <summary>
         /// Internal framework use only.