diff --git a/Filtration.ThemeEditor/Filtration.ThemeEditor.csproj b/Filtration.ThemeEditor/Filtration.ThemeEditor.csproj
index 65fc4f7..57cb908 100644
--- a/Filtration.ThemeEditor/Filtration.ThemeEditor.csproj
+++ b/Filtration.ThemeEditor/Filtration.ThemeEditor.csproj
@@ -95,6 +95,7 @@
     <Compile Include="Properties\AssemblyInfo.cs" />
     <Compile Include="Providers\ThemeProvider.cs" />
     <Compile Include="Services\ThemePersistenceService.cs" />
+    <Compile Include="Services\ThemeService.cs" />
     <Compile Include="ViewModels\IThemeViewModelFactory.cs" />
     <Compile Include="ViewModels\ThemeComponentViewModel.cs" />
     <Compile Include="ViewModels\ThemeViewModel.cs" />
diff --git a/Filtration.ThemeEditor/Providers/ThemeProvider.cs b/Filtration.ThemeEditor/Providers/ThemeProvider.cs
index 3ffb8bd..b072c02 100644
--- a/Filtration.ThemeEditor/Providers/ThemeProvider.cs
+++ b/Filtration.ThemeEditor/Providers/ThemeProvider.cs
@@ -1,7 +1,6 @@
 using System.Collections.ObjectModel;
 using AutoMapper;
 using Filtration.ObjectModel;
-using Filtration.ObjectModel.Enums;
 using Filtration.ObjectModel.ThemeEditor;
 using Filtration.ThemeEditor.Services;
 using Filtration.ThemeEditor.ViewModels;
@@ -12,6 +11,7 @@ namespace Filtration.ThemeEditor.Providers
     {
         IThemeViewModel NewThemeForScript(ItemFilterScript script);
         IThemeViewModel LoadThemeFromFile(string filePath);
+        Theme LoadThemeModelFromFile(string filePath);
         void SaveTheme(IThemeViewModel themeViewModel, string filePath);
     }
 
@@ -29,7 +29,6 @@ namespace Filtration.ThemeEditor.Providers
         public IThemeViewModel NewThemeForScript(ItemFilterScript script)
         {
             Mapper.CreateMap<ThemeComponent, ThemeComponentViewModel>();
-            //Mapper.CreateMap<ThemeComponentType, ThemeComponentType>();
 
             var themeComponentViewModels = Mapper.Map<ObservableCollection<ThemeComponentViewModel>>(script.ThemeComponents);
             var themeViewModel = _themeViewModelFactory.Create();
@@ -43,7 +42,6 @@ namespace Filtration.ThemeEditor.Providers
         {
             Mapper.CreateMap<Theme, IThemeViewModel>().ConstructUsingServiceLocator();
             Mapper.CreateMap<ThemeComponent, ThemeComponentViewModel>();
-            //Mapper.CreateMap<ThemeComponentType, ThemeComponentType>();
 
             var model = _themePersistenceService.LoadTheme(filePath);
             var viewModel = Mapper.Map<IThemeViewModel>(model);
@@ -51,11 +49,15 @@ namespace Filtration.ThemeEditor.Providers
             return viewModel;
         }
 
+        public Theme LoadThemeModelFromFile(string filePath)
+        {
+            return _themePersistenceService.LoadTheme(filePath);
+        }
+
         public void SaveTheme(IThemeViewModel themeViewModel, string filePath)
         {
             Mapper.CreateMap<IThemeViewModel, Theme>();
             Mapper.CreateMap<ThemeComponentViewModel, ThemeComponent>();
-            //Mapper.CreateMap<ThemeComponentType, ThemeComponentType>();
 
             var theme = Mapper.Map<Theme>(themeViewModel);
             _themePersistenceService.SaveTheme(theme, filePath);
diff --git a/Filtration.ThemeEditor/Services/ThemeService.cs b/Filtration.ThemeEditor/Services/ThemeService.cs
new file mode 100644
index 0000000..8b82018
--- /dev/null
+++ b/Filtration.ThemeEditor/Services/ThemeService.cs
@@ -0,0 +1,67 @@
+using System;
+using System.Linq;
+using System.Windows;
+using Filtration.ObjectModel;
+using Filtration.ObjectModel.BlockItemBaseTypes;
+using Filtration.ObjectModel.BlockItemTypes;
+using Filtration.ObjectModel.Enums;
+using Filtration.ObjectModel.ThemeEditor;
+
+namespace Filtration.ThemeEditor.Services
+{
+    public interface IThemeService
+    {
+        void ApplyThemeToScript(Theme theme, ItemFilterScript script);
+    }
+
+    public class ThemeService : IThemeService
+    {
+        public void ApplyThemeToScript(Theme theme, ItemFilterScript script)
+        {
+            var mismatchedComponents = false;
+            foreach (var component in theme.Components)
+            {
+                var componentMatched = false;
+                Type targetType = null;
+                switch (component.ComponentType)
+                {
+                    case ThemeComponentType.BackgroundColor:
+                        targetType = typeof (BackgroundColorBlockItem);
+                        break;
+                    case ThemeComponentType.TextColor:
+                        targetType = typeof (TextColorBlockItem);
+                        break;
+                    case ThemeComponentType.BorderColor:
+                        targetType = typeof (BorderColorBlockItem);
+                        break;
+                }
+
+                foreach (var block in script.ItemFilterBlocks)
+                {
+                    foreach (var blockItem in block.BlockItems.Where(i => i.GetType() == targetType))
+                    {
+                        var colorBlockItem = (ColorBlockItem) blockItem;
+                        if (colorBlockItem.ThemeComponent != null &&
+                            colorBlockItem.ThemeComponent.ComponentName == component.ComponentName)
+                        {
+                            colorBlockItem.Color = component.Color;
+                            componentMatched = true;
+                        }
+                    }   
+                }
+
+                if (!componentMatched)
+                {
+                    mismatchedComponents = true;
+                }
+            }
+
+            if (mismatchedComponents)
+            {
+                MessageBox.Show(
+                    "Not all theme components had matches - are you sure this theme is designed for this script?",
+                    "Possible Theme Mismatch", MessageBoxButton.OK, MessageBoxImage.Exclamation);
+            }
+        }
+    }
+}
diff --git a/Filtration.ThemeEditor/Views/ThemeControl.xaml b/Filtration.ThemeEditor/Views/ThemeControl.xaml
index 254e2db..2b21c2b 100644
--- a/Filtration.ThemeEditor/Views/ThemeControl.xaml
+++ b/Filtration.ThemeEditor/Views/ThemeControl.xaml
@@ -10,7 +10,7 @@
              d:DesignHeight="300" d:DesignWidth="300">
     <Grid>
         <ScrollViewer HorizontalScrollBarVisibility="Disabled">
-            <ItemsControl ItemsSource="{Binding Components}">
+            <ItemsControl ItemsSource="{Binding Components}" Margin="10">
                 <ItemsControl.ItemsPanel>
                     <ItemsPanelTemplate>
                         <WrapPanel />
@@ -18,7 +18,7 @@
                 </ItemsControl.ItemsPanel>
                 <ItemsControl.ItemTemplate>
                     <DataTemplate>
-                        <views:ThemeComponentControl DataContext="{Binding}" Margin="10" />
+                        <views:ThemeComponentControl DataContext="{Binding}" Margin="10,5,10,5" />
                     </DataTemplate>
                 </ItemsControl.ItemTemplate>
             </ItemsControl>
diff --git a/Filtration.ThemeEditor/WindsorInstallers/ServicesInstaller.cs b/Filtration.ThemeEditor/WindsorInstallers/ServicesInstaller.cs
index 26ada59..a0de0ee 100644
--- a/Filtration.ThemeEditor/WindsorInstallers/ServicesInstaller.cs
+++ b/Filtration.ThemeEditor/WindsorInstallers/ServicesInstaller.cs
@@ -13,6 +13,11 @@ namespace Filtration.ThemeEditor.WindsorInstallers
                 Component.For<IThemePersistenceService>()
                     .ImplementedBy<ThemePersistenceService>()
                     .LifeStyle.Singleton);
+
+            container.Register(
+                Component.For<IThemeService>()
+                    .ImplementedBy<ThemeService>()
+                    .LifeStyle.Singleton);
         }
     }
 }
diff --git a/Filtration/ViewModels/ItemFilterScriptViewModel.cs b/Filtration/ViewModels/ItemFilterScriptViewModel.cs
index de5a02f..d27f934 100644
--- a/Filtration/ViewModels/ItemFilterScriptViewModel.cs
+++ b/Filtration/ViewModels/ItemFilterScriptViewModel.cs
@@ -7,7 +7,6 @@ using System.Linq;
 using System.Windows;
 using System.Windows.Data;
 using System.Windows.Forms;
-using System.Windows.Media;
 using System.Windows.Media.Imaging;
 using Castle.Core.Internal;
 using Filtration.Common.ViewModels;
@@ -15,7 +14,6 @@ using Filtration.Interface;
 using Filtration.ObjectModel;
 using Filtration.Services;
 using Filtration.Translators;
-using Filtration.ViewModels.ToolPanes;
 using GalaSoft.MvvmLight.CommandWpf;
 using GalaSoft.MvvmLight.Messaging;
 using Clipboard = System.Windows.Clipboard;
@@ -37,6 +35,7 @@ namespace Filtration.ViewModels
         
         void Initialise(ItemFilterScript itemFilterScript, bool newScript);
         void RemoveDirtyFlag();
+        void SetDirtyFlag();
 
         void AddSection(IItemFilterBlockViewModel targetBlockViewModel);
         void AddBlock(IItemFilterBlockViewModel targetBlockViewModel);
@@ -238,7 +237,14 @@ namespace Filtration.ViewModels
             RaisePropertyChanged("Filename");
             RaisePropertyChanged("DisplayName");
         }
-        
+
+        public void SetDirtyFlag()
+        {
+            IsDirty = true;
+            RaisePropertyChanged("Filename");
+            RaisePropertyChanged("DisplayName");
+        }
+
         public string DisplayName
         {
             get { return !string.IsNullOrEmpty(Filename) ? Filename : Description; }
diff --git a/Filtration/ViewModels/MainWindowViewModel.cs b/Filtration/ViewModels/MainWindowViewModel.cs
index f945d15..c68e14d 100644
--- a/Filtration/ViewModels/MainWindowViewModel.cs
+++ b/Filtration/ViewModels/MainWindowViewModel.cs
@@ -4,8 +4,10 @@ using System.Reflection;
 using System.Windows.Forms;
 using Filtration.Common.ViewModels;
 using Filtration.Interface;
+using Filtration.ObjectModel.ThemeEditor;
 using Filtration.Repositories;
 using Filtration.ThemeEditor.Providers;
+using Filtration.ThemeEditor.Services;
 using Filtration.ThemeEditor.ViewModels;
 using Filtration.Translators;
 using Filtration.Views;
@@ -30,6 +32,7 @@ namespace Filtration.ViewModels
         private readonly IAvalonDockWorkspaceViewModel _avalonDockWorkspaceViewModel;
         private readonly ISettingsWindowViewModel _settingsWindowViewModel;
         private readonly IThemeProvider _themeProvider;
+        private readonly IThemeService _themeService;
 
         private IDocument _activeDocument;
 
@@ -38,7 +41,8 @@ namespace Filtration.ViewModels
                                    IReplaceColorsViewModel replaceColorsViewModel,
                                    IAvalonDockWorkspaceViewModel avalonDockWorkspaceViewModel,
                                    ISettingsWindowViewModel settingsWindowViewModel,
-                                   IThemeProvider themeProvider)
+                                   IThemeProvider themeProvider,
+                                   IThemeService themeService)
         {
             _itemFilterScriptRepository = itemFilterScriptRepository;
             _itemFilterScriptTranslator = itemFilterScriptTranslator;
@@ -46,12 +50,14 @@ namespace Filtration.ViewModels
             _avalonDockWorkspaceViewModel = avalonDockWorkspaceViewModel;
             _settingsWindowViewModel = settingsWindowViewModel;
             _themeProvider = themeProvider;
+            _themeService = themeService;
 
             NewScriptCommand = new RelayCommand(OnNewScriptCommand);
             CopyScriptCommand = new RelayCommand(OnCopyScriptCommand, ActiveDocumentIsScript);
             OpenScriptCommand = new RelayCommand(OnOpenScriptCommand);
             OpenThemeCommand = new RelayCommand(OnOpenThemeCommand);
 
+
             SaveCommand = new RelayCommand(OnSaveDocumentCommand, ActiveDocumentIsEditable);
             SaveAsCommand = new RelayCommand(OnSaveAsCommand, ActiveDocumentIsEditable);
             CloseCommand = new RelayCommand(OnCloseDocumentCommand, () => AvalonDockWorkspaceViewModel.ActiveDocument != null);
@@ -63,6 +69,7 @@ namespace Filtration.ViewModels
             OpenSettingsWindowCommand = new RelayCommand(OnOpenSettingsWindowCommand);
             ReplaceColorsCommand = new RelayCommand(OnReplaceColorsCommand, ActiveDocumentIsScript);
             CreateThemeCommand = new RelayCommand(OnCreateThemeCommand, ActiveDocumentIsScript);
+            ApplyThemeToScriptCommand = new RelayCommand(OnApplyThemeToScriptCommand, ActiveDocumentIsScript);
 
             //LoadScriptFromFile("C:\\ThioleLootFilter.txt");
 
@@ -78,14 +85,16 @@ namespace Filtration.ViewModels
                     case "ActiveDocumentChanged":
                     {
                         _activeDocument = _avalonDockWorkspaceViewModel.ActiveDocument;
+                        
+                        CopyScriptCommand.RaiseCanExecuteChanged();
                         SaveCommand.RaiseCanExecuteChanged();
                         SaveAsCommand.RaiseCanExecuteChanged();
-                        CopyScriptCommand.RaiseCanExecuteChanged();
+                        CloseCommand.RaiseCanExecuteChanged();
                         CopyBlockCommand.RaiseCanExecuteChanged();
                         PasteCommand.RaiseCanExecuteChanged();
-                        NewScriptCommand.RaiseCanExecuteChanged();
-                        CloseCommand.RaiseCanExecuteChanged();
                         ReplaceColorsCommand.RaiseCanExecuteChanged();
+                        ApplyThemeToScriptCommand.RaiseCanExecuteChanged();
+                        CreateThemeCommand.RaiseCanExecuteChanged();
                         break;
                     }
                     case "NewScript":
@@ -115,6 +124,7 @@ namespace Filtration.ViewModels
         public RelayCommand OpenSettingsWindowCommand { get; private set; }
         public RelayCommand ReplaceColorsCommand { get; private set; }
         public RelayCommand CreateThemeCommand { get; private set; }
+        public RelayCommand ApplyThemeToScriptCommand { get; private set; }
 
         public IAvalonDockWorkspaceViewModel AvalonDockWorkspaceViewModel
         {
@@ -201,19 +211,18 @@ namespace Filtration.ViewModels
 
         private void OnOpenThemeCommand()
         {
-            var openFileDialog = new OpenFileDialog
+
+            var filePath = ShowOpenThemeDialog();
+            if (string.IsNullOrEmpty(filePath))
             {
-                Filter = "Filter Theme Files (*.filtertheme)|*.filtertheme|All Files (*.*)|*.*",
-                InitialDirectory = _itemFilterScriptRepository.GetItemFilterScriptDirectory()
-            };
-            
-            if (openFileDialog.ShowDialog() != true) return;
+                return;
+            }
 
             IThemeViewModel loadedViewModel;
 
             try
             {
-                loadedViewModel = _themeProvider.LoadThemeFromFile(openFileDialog.FileName);
+                loadedViewModel = _themeProvider.LoadThemeFromFile(filePath);
             }
             catch (IOException e)
             {
@@ -226,6 +235,53 @@ namespace Filtration.ViewModels
             _avalonDockWorkspaceViewModel.AddDocument(loadedViewModel);
         }
 
+        private void OnApplyThemeToScriptCommand()
+        {
+            var filePath = ShowOpenThemeDialog();
+            if (string.IsNullOrEmpty(filePath))
+            {
+                return;
+            }
+
+            Theme loadedTheme;
+
+            try
+            {
+                loadedTheme = _themeProvider.LoadThemeModelFromFile(filePath);
+            }
+            catch (IOException e)
+            {
+                MessageBox.Show(@"Error loading filter theme - " + e.Message, @"Theme Load Error",
+                    MessageBoxButtons.OK,
+                    MessageBoxIcon.Error);
+                return;
+            }
+
+            var result = MessageBox.Show(@"Are you sure you wish to apply this theme to the current filter script?",
+                @"Confirm", MessageBoxButtons.YesNo, MessageBoxIcon.Question);
+            if (result == DialogResult.No)
+            {
+                return;
+            }
+
+            _themeService.ApplyThemeToScript(loadedTheme, AvalonDockWorkspaceViewModel.ActiveScriptViewModel.Script);
+            AvalonDockWorkspaceViewModel.ActiveScriptViewModel.SetDirtyFlag();
+        }
+
+
+        private string ShowOpenThemeDialog()
+        {
+            var openFileDialog = new OpenFileDialog
+            {
+                Filter = "Filter Theme Files (*.filtertheme)|*.filtertheme|All Files (*.*)|*.*",
+                InitialDirectory = _itemFilterScriptRepository.GetItemFilterScriptDirectory()
+            };
+
+            return openFileDialog.ShowDialog() != true ? string.Empty : openFileDialog.FileName;
+        }
+
+
+
         private void SetItemFilterScriptDirectory()
         {
             var dlg = new FolderBrowserDialog
diff --git a/Filtration/Views/MainWindow.xaml b/Filtration/Views/MainWindow.xaml
index ec43b54..a582a5a 100644
--- a/Filtration/Views/MainWindow.xaml
+++ b/Filtration/Views/MainWindow.xaml
@@ -9,7 +9,7 @@
         xmlns:viewsAvalonDock="clr-namespace:Filtration.Views.AvalonDock"
         mc:Ignorable="d"
         d:DataContext="{d:DesignInstance Type=viewModels:MainWindowViewModel}"
-        Title="{Binding WindowTitle}" Height="768" Width="1024" BorderThickness="1" BorderBrush="Black">
+        Title="{Binding WindowTitle}" Height="768" Width="1100" BorderThickness="1" BorderBrush="Black">
     <DockPanel>
         <Menu DockPanel.Dock="Top">
             <MenuItem Header="_File">
@@ -33,6 +33,7 @@
                 <MenuItem Header="Block Group Browser" IsCheckable="True" IsChecked="{Binding AvalonDockWorkspaceViewModel.BlockGroupBrowserViewModel.IsVisible}" Icon="{StaticResource BlockGroupBrowserIcon}" />
             </MenuItem>
             <MenuItem Header="_Tools">
+                <MenuItem Header="_Apply Theme to Script" Command="{Binding ApplyThemeToScriptCommand}" Icon="{StaticResource ThemeIcon}" />
                 <MenuItem Header="_Replace Colors" Command="{Binding ReplaceColorsCommand}" Icon="{StaticResource ReplaceColorsIcon}" />
                 <MenuItem Header="_Settings" Command="{Binding OpenSettingsWindowCommand}" />
             </MenuItem>