diff --git a/Quik.Media.Defaults/FreeTypeFontFactory.cs b/Quik.Media.Defaults/FreeTypeFontFactory.cs
new file mode 100644
index 0000000..f75653e
--- /dev/null
+++ b/Quik.Media.Defaults/FreeTypeFontFactory.cs
@@ -0,0 +1,24 @@
+
+using System.Diagnostics.CodeAnalysis;
+using System.IO;
+using Quik.PAL;
+
+namespace Quik.Media.Defaults
+{
+    public class FreeTypeFontFactory : IFontFactory
+    {
+        public bool TryOpen(Stream stream, [NotNullWhen(true)] out QFont font)
+        {
+            try
+            {
+                font = new QFontFreeType(stream);
+                return true;
+            }
+            catch
+            {
+                font = null;
+                return false;
+            }
+        }
+    }
+}
\ No newline at end of file
diff --git a/Quik/OpenGL/GL21Driver.cs b/Quik/OpenGL/GL21Driver.cs
index bc132be..4302ba5 100644
--- a/Quik/OpenGL/GL21Driver.cs
+++ b/Quik/OpenGL/GL21Driver.cs
@@ -112,6 +112,8 @@ namespace Quik.OpenGL
             GL.Enable(GL_BLEND);
             GL.BlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
             GL.Enable(GL_SCISSOR_TEST);
+            GL.Enable(GL_DEPTH_TEST);
+            GL.DepthFunc(GL_LESS);
 
             foreach (DrawCall call in queue)
             {
@@ -151,6 +153,10 @@ namespace Quik.OpenGL
 
                 GL.DrawElements(GL_TRIANGLES, call.Count, GL_UNSIGNED_INT, sizeof(int)*call.Start);
             }
+
+            GL.Disable(GL_SCISSOR_TEST);
+            GL.Disable(GL_DEPTH_TEST);
+            GL.Disable(GL_BLEND);
         }
 
         public void ClearDrawQueue(DrawQueue queue)
diff --git a/Quik/OpenGL/GLEnum.cs b/Quik/OpenGL/GLEnum.cs
index d2ebb93..89b5213 100644
--- a/Quik/OpenGL/GLEnum.cs
+++ b/Quik/OpenGL/GLEnum.cs
@@ -81,9 +81,13 @@ namespace Quik.OpenGL
         GL_TRIANGLES = 0x0004,
 
         GL_SCISSOR_TEST = 0x0C11,
+        GL_DEPTH_TEST = 0x0B71,
+
         GL_TEXTURE_SWIZZLE_R = 0x8E42,
         GL_TEXTURE_SWIZZLE_G = 0x8E43,
         GL_TEXTURE_SWIZZLE_B = 0x8E44,
-        GL_TEXTURE_SWIZZLE_A = 0x8E45
+        GL_TEXTURE_SWIZZLE_A = 0x8E45,
+
+        GL_LESS = 0x0201,
     }
 }
\ No newline at end of file
diff --git a/Quik/PAL/IFontFactory.cs b/Quik/PAL/IFontFactory.cs
new file mode 100644
index 0000000..7d11710
--- /dev/null
+++ b/Quik/PAL/IFontFactory.cs
@@ -0,0 +1,12 @@
+
+using System.Diagnostics.CodeAnalysis;
+using System.IO;
+using Quik.Media;
+
+namespace Quik.PAL
+{
+    public interface IFontFactory
+    {
+        bool TryOpen(Stream stream, [NotNullWhen(true)] out QFont font);
+    }
+}
\ No newline at end of file
diff --git a/Quik/QuikApplication.cs b/Quik/QuikApplication.cs
index 24aa773..98e48c3 100644
--- a/Quik/QuikApplication.cs
+++ b/Quik/QuikApplication.cs
@@ -1,5 +1,6 @@
 using System;
 using System.Collections.Generic;
+using System.Threading;
 using Quik.CommandMachine;
 using Quik.Controls;
 using Quik.Media;
@@ -85,24 +86,43 @@ namespace Quik
             return disposable;
         }
 
-        public void Run(View mainView)
+        private CommandList cmd = new CommandList();
+
+        public void Run(View mainView, bool yield = true)
         {
-            MainPort = new QuikPort(Platform) { UIElement = mainView };
-            CommandList cmd = new CommandList();
+            Init(mainView);
 
-            MainPort.EventRaised += (sender, ea) => mainView.NotifyEvent(sender, ea);
-
-            while (MainPort.IsValid)
+            while (RunSync())
             {
-                Platform.ProcessEvents(false);
-                if (MainPort.IsValid)
+                if (yield)
                 {
-                    cmd.Clear();
-                    MainPort.Paint(cmd);
+                    Thread.Yield();
                 }
             }
         }
 
+        public void Init(View mainView)
+        {
+            MainPort = new QuikPort(Platform) { UIElement = mainView };
+            MainPort.EventRaised += (sender, ea) => mainView.NotifyEvent(sender, ea);
+        }
+
+        public bool RunSync()
+        {
+            if (!MainPort.IsValid)
+                return false;
+
+            Platform.ProcessEvents(false);
+
+            if (MainPort.IsValid)
+            {
+                cmd.Clear();
+                MainPort.Paint(cmd);
+            }
+
+            return true;
+        }
+
         public static QuikApplication Current { get; private set; }
 
         public static void SetCurrentApplication(QuikApplication application)
diff --git a/Quik/Typography/FontProvider.cs b/Quik/Typography/FontProvider.cs
index cdfa878..6926e28 100644
--- a/Quik/Typography/FontProvider.cs
+++ b/Quik/Typography/FontProvider.cs
@@ -1,8 +1,10 @@
 using Quik.Media;
 using Quik.Media.Font;
+using Quik.PAL;
 using System;
 using System.Collections.Generic;
-using System.Linq;
+using System.IO;
+using System.Reflection;
 
 namespace Quik.Typography
 {
@@ -14,6 +16,8 @@ namespace Quik.Typography
         private Dictionary<FontFace, QFont> Fonts { get; } = new Dictionary<FontFace, QFont>();
         private HashSet<QFont> UsedFonts { get; } = new HashSet<QFont>();
         public readonly FontRasterizerOptions RasterizerOptions;
+        public IFontDataBase Database { get; set; }
+        public IFontFactory FontFactory { get; set; }
         private readonly QuikApplication App;
 
         public QFont this[FontFace info]
@@ -22,8 +26,15 @@ namespace Quik.Typography
             {
                 if (!Fonts.TryGetValue(info, out QFont font))
                 {
-                    font = (QFont)App.GetMedia(info, MediaHint.Font);
-                    Fonts[info] = font;
+                    using Stream str = Database?.Open(info);
+                    if (FontFactory.TryOpen(str, out font))
+                    {
+                        Fonts.Add(info, font);
+                    }
+                    else
+                    {
+                        throw new Exception("Font not found.");
+                    }
                 }
 
                 UsedFonts.Add(font);
@@ -31,10 +42,35 @@ namespace Quik.Typography
             }
         }
 
+        public QFont this[SystemFontFamily family]
+        {
+            get
+            {
+                return this[Database.GetSystemFontFace(family)];
+            }
+        }
+
         public FontProvider(QuikApplication app, in FontRasterizerOptions options)
         {
             RasterizerOptions = options;
             App = app;
+
+            Type fdb = Type.GetType("Quik.Media.Defaults.FontDataBaseProvider, Quik.Media.Defaults");
+            if (fdb != null)
+            {
+                PropertyInfo instanceProperty = fdb.GetProperty("Instance", BindingFlags.Static | BindingFlags.Public | BindingFlags.GetProperty);
+                if (instanceProperty != null)
+                {
+                    Database = (IFontDataBase)instanceProperty.GetValue(null);
+                }
+            }
+
+            Type ffact = Type.GetType("Quik.Media.Defaults.FreeTypeFontFactory, Quik.Media.Defaults");
+            if (ffact != null)
+            {
+                ConstructorInfo ctor = ffact.GetConstructor(Array.Empty<Type>());
+                FontFactory = (IFontFactory)ctor.Invoke(null);
+            }
         }
         public FontProvider(QuikApplication app)
             : this(app, FontRasterizerOptions.Default)