diff --git a/Filtration/Filtration.csproj b/Filtration/Filtration.csproj
index d338b2f..5d3958f 100644
--- a/Filtration/Filtration.csproj
+++ b/Filtration/Filtration.csproj
@@ -148,6 +148,9 @@
     <Compile Include="UserControls\EditableListBoxControl.xaml.cs">
       <DependentUpon>EditableListBoxControl.xaml</DependentUpon>
     </Compile>
+    <Compile Include="UserControls\ItemPreviewControl.xaml.cs">
+      <DependentUpon>ItemPreviewControl.xaml</DependentUpon>
+    </Compile>
     <Compile Include="Utilities\LineReader.cs" />
     <Compile Include="ViewModels\FiltrationViewModelBase.cs" />
     <Compile Include="ViewModels\ILootFilterScriptViewModelFactory.cs" />
@@ -183,6 +186,10 @@
     <Compile Include="WindsorInstallers\TranslatorsInstaller.cs" />
     <Compile Include="WindsorInstallers\ViewModelsInstaller.cs" />
     <Compile Include="WindsorInstallers\ViewsInstaller.cs" />
+    <Page Include="UserControls\ItemPreviewControl.xaml">
+      <SubType>Designer</SubType>
+      <Generator>MSBuild:Compile</Generator>
+    </Page>
     <Page Include="Views\CrossButton.xaml">
       <SubType>Designer</SubType>
       <Generator>MSBuild:Compile</Generator>
@@ -203,7 +210,7 @@
       <SubType>Designer</SubType>
       <Generator>MSBuild:Compile</Generator>
     </Page>
-    <Page Include="Views\LootFilterBlockViewDictionary.xaml">
+    <Page Include="Views\SharedResourcesDictionary.xaml">
       <SubType>Designer</SubType>
       <Generator>MSBuild:Compile</Generator>
     </Page>
diff --git a/Filtration/Models/BlockItemBaseTypes/BlockItembase.cs b/Filtration/Models/BlockItemBaseTypes/BlockItembase.cs
new file mode 100644
index 0000000..0a352c2
--- /dev/null
+++ b/Filtration/Models/BlockItemBaseTypes/BlockItembase.cs
@@ -0,0 +1,26 @@
+using System.ComponentModel;
+using System.Runtime.CompilerServices;
+using System.Windows.Media;
+using Filtration.Annotations;
+
+namespace Filtration.Models.BlockItemBaseTypes
+{
+    abstract class BlockItemBase : ILootFilterBlockItem
+    {
+        public abstract string PrefixText { get; }
+        public abstract int MaximumAllowed { get; }
+        public abstract string DisplayHeading { get; }
+        public abstract string SummaryText { get; }
+        public abstract Color SummaryBackgroundColor { get; }
+        public abstract Color SummaryTextColor { get; }
+        public abstract int SortOrder { get; }
+
+        public event PropertyChangedEventHandler PropertyChanged;
+        [NotifyPropertyChangedInvocator]
+        protected virtual void OnPropertyChanged([CallerMemberName] string propertyName = null)
+        {
+            var handler = PropertyChanged;
+            if (handler != null) handler(this, new PropertyChangedEventArgs(propertyName));
+        }
+    }
+}
diff --git a/Filtration/UserControls/ItemPreviewControl.xaml b/Filtration/UserControls/ItemPreviewControl.xaml
new file mode 100644
index 0000000..a7d0822
--- /dev/null
+++ b/Filtration/UserControls/ItemPreviewControl.xaml
@@ -0,0 +1,26 @@
+<UserControl x:Class="Filtration.UserControls.ItemPreviewControl"
+             xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
+             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+             xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" 
+             xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
+             xmlns:userControls="clr-namespace:Filtration.UserControls"
+             mc:Ignorable="d" 
+             d:DataContext="{d:DesignInstance Type=userControls:ItemPreviewControl}"
+             d:DesignHeight="35" d:DesignWidth="170">
+    <UserControl.Resources>
+        <ResourceDictionary Source="../Views/SharedResourcesDictionary.xaml" />
+    </UserControl.Resources>
+    <Grid Width="143" Height="28">
+            <Image Source="pack://application:,,,/resources/groundtile.png" Stretch="Fill" />
+            <Border Margin="3" Padding="4,0,4,2" BorderThickness="2" BorderBrush="{Binding BorderColor, Converter={StaticResource ColorToSolidColorBrushConverter}}">
+                <Border.Background>
+                    <SolidColorBrush Color="{Binding BackgroundColor}" />
+                </Border.Background>
+                <TextBlock TextAlignment="Center" Text="Test Item Preview" Style="{StaticResource PathOfExileFont}">
+                    <TextBlock.Foreground>
+                        <SolidColorBrush Color="{Binding TextColor}" />
+                    </TextBlock.Foreground>
+                </TextBlock>
+            </Border>
+        </Grid>
+</UserControl>
diff --git a/Filtration/UserControls/ItemPreviewControl.xaml.cs b/Filtration/UserControls/ItemPreviewControl.xaml.cs
new file mode 100644
index 0000000..b39eb8f
--- /dev/null
+++ b/Filtration/UserControls/ItemPreviewControl.xaml.cs
@@ -0,0 +1,74 @@
+using System.Windows;
+using System.Windows.Media;
+
+namespace Filtration.UserControls
+{
+    public partial class ItemPreviewControl
+    {
+        public ItemPreviewControl()
+        {
+            InitializeComponent();
+            // ReSharper disable once PossibleNullReferenceException
+            (Content as FrameworkElement).DataContext = this;
+        }
+
+        public static readonly DependencyProperty TextColorProperty = DependencyProperty.Register(
+            "TextColor",
+            typeof (Color),
+            typeof(ItemPreviewControl),
+            new FrameworkPropertyMetadata()
+        );
+
+        public static readonly DependencyProperty BackgroundColorProperty = DependencyProperty.Register(
+            "BackgroundColor",
+            typeof(Color),
+            typeof(ItemPreviewControl),
+            new FrameworkPropertyMetadata()
+        );
+
+        public static readonly DependencyProperty BorderColorProperty = DependencyProperty.Register(
+            "BorderColor",
+            typeof(Color),
+            typeof(ItemPreviewControl),
+            new FrameworkPropertyMetadata()
+        );
+
+        public Color TextColor
+        {
+            get { return (Color) GetValue(TextColorProperty); }
+            set { SetValue(TextColorProperty, value); }
+        }
+
+        public Color BackgroundColor
+        {
+            get { return (Color)GetValue(BackgroundColorProperty); }
+            set { SetValue(BackgroundColorProperty, value); }
+        }
+
+        public Color BorderColor
+        {
+            get { return (Color)GetValue(BorderColorProperty); }
+            set { SetValue(BorderColorProperty, value); }
+        }
+        
+        //private static void OnItemPreviewControlPropertyChanged(DependencyObject source,
+        //    DependencyPropertyChangedEventArgs e)
+        //{
+        //    var control = source as ItemPreviewControl;
+        //    if (control == null) return;
+
+        //    control.OnPropertyChanged("TextColor");
+        //    control.OnPropertyChanged("BackgroundColor");
+        //    control.OnPropertyChanged("BorderColor");
+        //}
+
+        //public event PropertyChangedEventHandler PropertyChanged;
+
+        //[NotifyPropertyChangedInvocator]
+        //protected virtual void OnPropertyChanged([CallerMemberName] string propertyName = null)
+        //{
+        //    var handler = PropertyChanged;
+        //    if (handler != null) handler(this, new PropertyChangedEventArgs(propertyName));
+        //}
+    }
+}
diff --git a/Filtration/ViewModels/ReplaceColorsViewModel.cs b/Filtration/ViewModels/ReplaceColorsViewModel.cs
index 9809e61..ec025ad 100644
--- a/Filtration/ViewModels/ReplaceColorsViewModel.cs
+++ b/Filtration/ViewModels/ReplaceColorsViewModel.cs
@@ -31,25 +31,28 @@ namespace Filtration.ViewModels
             if (initialiseFromBlock.BlockItems.Count(b => b.GetType() == typeof (TextColorBlockItem)) > 0)
             {
                 _replaceColorsParameterSet.ReplaceTextColor = true;
-                _replaceColorsParameterSet.OldTextColor =
-                    ((TextColorBlockItem)
+                var existingBlockColor = ((TextColorBlockItem)
                         initialiseFromBlock.BlockItems.First(b => b.GetType() == typeof (TextColorBlockItem))).Color;
+                _replaceColorsParameterSet.OldTextColor = existingBlockColor;
+                _replaceColorsParameterSet.NewTextColor = existingBlockColor;
             }
 
             if (initialiseFromBlock.BlockItems.Count(b => b.GetType() == typeof(BackgroundColorBlockItem)) > 0)
             {
                 _replaceColorsParameterSet.ReplaceBackgroundColor = true;
-                _replaceColorsParameterSet.OldBackgroundColor =
-                    ((BackgroundColorBlockItem)
+                var existingBlockColor = ((BackgroundColorBlockItem)
                         initialiseFromBlock.BlockItems.First(b => b.GetType() == typeof(BackgroundColorBlockItem))).Color;
+                _replaceColorsParameterSet.OldBackgroundColor = existingBlockColor;
+                _replaceColorsParameterSet.NewBackgroundColor = existingBlockColor;
             }
 
             if (initialiseFromBlock.BlockItems.Count(b => b.GetType() == typeof(BorderColorBlockItem)) > 0)
             {
                 _replaceColorsParameterSet.ReplaceBorderColor = true;
-                _replaceColorsParameterSet.OldBorderColor =
-                    ((BorderColorBlockItem)
+                var existingBlockColor = ((BorderColorBlockItem)
                         initialiseFromBlock.BlockItems.First(b => b.GetType() == typeof(BorderColorBlockItem))).Color;
+                _replaceColorsParameterSet.OldBorderColor = existingBlockColor;
+                _replaceColorsParameterSet.NewBorderColor = existingBlockColor;
             }
 
             _lootFilterScript = lootFilterScript;
diff --git a/Filtration/Views/LootFilterBlockDisplaySettingsView.xaml b/Filtration/Views/LootFilterBlockDisplaySettingsView.xaml
index 34e78d2..3dcdcdb 100644
--- a/Filtration/Views/LootFilterBlockDisplaySettingsView.xaml
+++ b/Filtration/Views/LootFilterBlockDisplaySettingsView.xaml
@@ -15,7 +15,7 @@
     <UserControl.Resources>
         <ResourceDictionary>
             <ResourceDictionary.MergedDictionaries>
-                <ResourceDictionary Source="LootFilterBlockViewDictionary.xaml" />
+                <ResourceDictionary Source="SharedResourcesDictionary.xaml" />
                 <ResourceDictionary>
                     <CollectionViewSource x:Key="AudioVisualBlockItemsViewSource" Source="{Binding AudioVisualBlockItems}">
                         <CollectionViewSource.SortDescriptions>
diff --git a/Filtration/Views/LootFilterBlockView.xaml b/Filtration/Views/LootFilterBlockView.xaml
index 52f7083..e9bc2b1 100644
--- a/Filtration/Views/LootFilterBlockView.xaml
+++ b/Filtration/Views/LootFilterBlockView.xaml
@@ -10,14 +10,13 @@
              xmlns:blockItemTypes="clr-namespace:Filtration.Models.BlockItemTypes"
              xmlns:enums="clr-namespace:Filtration.Enums"
              xmlns:extensions="clr-namespace:Filtration.Extensions"
-             xmlns:models="clr-namespace:Filtration.Models"
              mc:Ignorable="d" 
              d:DataContext="{d:DesignInstance Type=viewModels:LootFilterBlockViewModel}"
              d:DesignHeight="200" d:DesignWidth="800">
     <UserControl.Resources>
         <ResourceDictionary>
             <ResourceDictionary.MergedDictionaries>
-                <ResourceDictionary Source="LootFilterBlockViewDictionary.xaml" />
+                <ResourceDictionary Source="SharedResourcesDictionary.xaml" />
                 <ResourceDictionary>
                     <views:BindingProxy x:Key="proxy" Data="{Binding}" />
                 </ResourceDictionary>
@@ -74,9 +73,6 @@
                                         </ItemsPanelTemplate>
                                     </ItemsControl.ItemsPanel>
                                     <ItemsControl.Resources>
-                                        
-                                   
-                                   
                                         <DataTemplate DataType="{x:Type blockItemBaseTypes:BlockItemBase}">
                                             <Border BorderBrush="Black" CornerRadius="4" Margin="0,2,2,2" BorderThickness="1" Background="{Binding SummaryBackgroundColor, Converter={StaticResource ColorToSolidColorBrushConverter}}">
                                                 <TextBlock Text="{Binding SummaryText}" Margin="5,1,5,1" Foreground="{Binding SummaryTextColor, Converter={StaticResource ColorToSolidColorBrushConverter}}" />
@@ -89,7 +85,6 @@
                                             </Border>
                                             </Button>
                                         </DataTemplate>
-                                    <!--</ItemsControl.ItemTemplate>-->
                                     </ItemsControl.Resources>
                                 </ItemsControl>
                             </StackPanel>
@@ -104,19 +99,7 @@
                                               x:Name="ItemPreviewButton"
                                               IsChecked="{Binding DisplaySettingsPopupOpen, Mode=OneWayToSource}"
                                               ToolTip="Click here to change color and font settings" Cursor="Hand" >
-                                    <Grid>
-                                        <Image Source="pack://application:,,,/resources/groundtile.png" Stretch="Fill" />
-                                        <Border Margin="3" Padding="4,0,4,2" BorderThickness="2" BorderBrush="{Binding DisplayBorderColor, Converter={StaticResource ColorToSolidColorBrushConverter}}">
-                                            <Border.Background>
-                                                <SolidColorBrush Color="{Binding DisplayBackgroundColor}" />
-                                            </Border.Background>
-                                            <TextBlock TextAlignment="Center" Text="Test Item Preview" Style="{StaticResource PathOfExileFont}">
-                                                <TextBlock.Foreground>
-                                                    <SolidColorBrush Color="{Binding DisplayTextColor}" />
-                                                </TextBlock.Foreground>
-                                            </TextBlock>
-                                        </Border>
-                                    </Grid>
+                                    <userControls:ItemPreviewControl TextColor="{Binding DisplayTextColor}" BackgroundColor="{Binding DisplayBackgroundColor}" BorderColor="{Binding DisplayBorderColor}" />
                                 </ToggleButton>
                             </WrapPanel>
 
diff --git a/Filtration/Views/ReplaceColorsWindow.xaml b/Filtration/Views/ReplaceColorsWindow.xaml
index 713b651..8100b9b 100644
--- a/Filtration/Views/ReplaceColorsWindow.xaml
+++ b/Filtration/Views/ReplaceColorsWindow.xaml
@@ -6,6 +6,7 @@
         xmlns:controls="http://metro.mahapps.com/winfx/xaml/controls"
         xmlns:xctk="http://schemas.xceed.com/wpf/xaml/toolkit"
         xmlns:viewModels="clr-namespace:Filtration.ViewModels"
+        xmlns:userControls="clr-namespace:Filtration.UserControls"
         mc:Ignorable="d"
         d:DataContext="{d:DesignInstance Type=viewModels:ReplaceColorsViewModel}"
         ShowMaxRestoreButton="False"
@@ -15,7 +16,7 @@
     <Window.Resources>
         <ResourceDictionary>
             <ResourceDictionary.MergedDictionaries>
-                <ResourceDictionary Source="LootFilterBlockViewDictionary.xaml" />
+                <ResourceDictionary Source="SharedResourcesDictionary.xaml" />
             </ResourceDictionary.MergedDictionaries>
         </ResourceDictionary>
     </Window.Resources>
@@ -56,19 +57,7 @@
         <TextBlock Grid.Row="5" Grid.Column="2" VerticalAlignment="Center">New Border Color</TextBlock>
         <xctk:ColorPicker Grid.Row="5" Grid.Column="4" SelectedColor="{Binding NewBorderColor}"  />
 
-        <Grid Grid.Row="6" Grid.Column="4">
-            <Image Source="pack://application:,,,/resources/groundtile.png" Stretch="Fill" />
-            <Border Padding="4,2,4,2" BorderThickness="2" BorderBrush="{Binding DisplayBorderColor, Converter={StaticResource ColorToSolidColorBrushConverter}}">
-                <Border.Background>
-                    <SolidColorBrush Color="{Binding DisplayBackgroundColor}" />
-                </Border.Background>
-                <TextBlock TextAlignment="Center" Text="Test Item Preview" Style="{StaticResource PathOfExileFont}">
-                    <TextBlock.Foreground>
-                        <SolidColorBrush Color="{Binding DisplayTextColor}" />
-                    </TextBlock.Foreground>
-                </TextBlock>
-            </Border>
-        </Grid>
+        <userControls:ItemPreviewControl Grid.Row="6" Grid.Column="4" TextColor="{Binding DisplayTextColor}" BackgroundColor="{Binding DisplayBackgroundColor}" BorderColor="{Binding DisplayBorderColor}" />
         <TextBlock Grid.Row="6" Grid.Column="2" VerticalAlignment="Center">Preview</TextBlock>
         <Button Grid.Row="7" Grid.Column="4" Command="{Binding ReplaceColorsCommand}">Replace Colors</Button>
     </Grid>
diff --git a/Filtration/Views/LootFilterBlockViewDictionary.xaml b/Filtration/Views/SharedResourcesDictionary.xaml
similarity index 100%
rename from Filtration/Views/LootFilterBlockViewDictionary.xaml
rename to Filtration/Views/SharedResourcesDictionary.xaml