diff --git a/src/main/java/com/pixelgamelibrary/backend/libgdx/AppLibGDXImpl.java b/src/main/java/com/pixelgamelibrary/backend/libgdx/AppLibGDXImpl.java
index 9331042..a8b1307 100644
--- a/src/main/java/com/pixelgamelibrary/backend/libgdx/AppLibGDXImpl.java
+++ b/src/main/java/com/pixelgamelibrary/backend/libgdx/AppLibGDXImpl.java
@@ -25,21 +25,25 @@ import static com.badlogic.gdx.Application.ApplicationType.Desktop;
 import static com.badlogic.gdx.Application.ApplicationType.WebGL;
 import static com.badlogic.gdx.Application.ApplicationType.iOS;
 import com.badlogic.gdx.Gdx;
-import com.pixelgamelibrary.api.GameI;
 import com.pixelgamelibrary.api.PixelException;
 import com.pixelgamelibrary.api.Platform;
-import com.pixelgamelibrary.api.interfaces.AppI;
+import com.pixelgamelibrary.api.interfaces.App;
+import com.pixelgamelibrary.api.Game;
+import com.pixelgamelibrary.api.PixelFeature;
+import com.pixelgamelibrary.api.utils.ClipBoard;
+import com.pixelgamelibrary.api.utils.LogLevel;
+import com.pixelgamelibrary.api.utils.Preferences;
 
 /**
  *
  * @author robertvokac
  */
-public class AppLibGDXImpl implements AppI {
+public class AppLibGDXImpl implements App {
 
     private static final String DEFAULT_APP_NAME = "pixel-app";
 
     private String appName = null;
-    private GameI game;
+    private Game game;
 
     @Override
     public void exit() {
@@ -112,13 +116,43 @@ public class AppLibGDXImpl implements AppI {
     }
 
     @Override
-    public void setGame(GameI game) {
+    public void setGame(Game game) {
         this.game = game;
     }
 
     @Override
-    public GameI getGame() {
+    public Game getGame() {
         return game;
     }
 
+    @Override
+    public void setLogLevel(LogLevel logLevel) {
+        throw new UnsupportedOperationException("Not supported yet."); // Generated from nbfs://nbhost/SystemFileSystem/Templates/Classes/Code/GeneratedMethodBody
+    }
+
+    @Override
+    public Preferences getPreferences(String preferencesName) {
+        throw new UnsupportedOperationException("Not supported yet."); // Generated from nbfs://nbhost/SystemFileSystem/Templates/Classes/Code/GeneratedMethodBody
+    }
+
+    @Override
+    public boolean isFeatureEnabled(PixelFeature feature) {
+        throw new UnsupportedOperationException("Not supported yet."); // Generated from nbfs://nbhost/SystemFileSystem/Templates/Classes/Code/GeneratedMethodBody
+    }
+
+    @Override
+    public boolean isMobileDevice() {
+        throw new UnsupportedOperationException("Not supported yet."); // Generated from nbfs://nbhost/SystemFileSystem/Templates/Classes/Code/GeneratedMethodBody
+    }
+
+    @Override
+    public void postRunnable(Runnable runnable) {
+        throw new UnsupportedOperationException("Not supported yet."); // Generated from nbfs://nbhost/SystemFileSystem/Templates/Classes/Code/GeneratedMethodBody
+    }
+
+    @Override
+    public ClipBoard getClipBoard() {
+        throw new UnsupportedOperationException("Not supported yet."); // Generated from nbfs://nbhost/SystemFileSystem/Templates/Classes/Code/GeneratedMethodBody
+    }
+
 }
diff --git a/src/main/java/com/pixelgamelibrary/backend/libgdx/AssetLibGDXImpl.java b/src/main/java/com/pixelgamelibrary/backend/libgdx/AssetLibGDXImpl.java
deleted file mode 100644
index 2d6b981..0000000
--- a/src/main/java/com/pixelgamelibrary/backend/libgdx/AssetLibGDXImpl.java
+++ /dev/null
@@ -1,43 +0,0 @@
-///////////////////////////////////////////////////////////////////////////////////////////////
-// Pixel: Game library.
-// Copyright (C) 2024 the original author or authors.
-//
-// This program is free software: you can redistribute it and/or
-// modify it under the terms of the GNU General Public License
-// as published by the Free Software Foundation, either version 3
-// of the License, or (at your option) any later version.
-//
-// This program is distributed in the hope that it will be useful,
-// but WITHOUT ANY WARRANTY; without even the implied warranty of
-// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-// GNU General Public License for more details.
-//
-// You should have received a copy of the GNU General Public License
-// along with this program. If not, see 
-// <https://www.gnu.org/licenses/> or write to the Free Software
-// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
-///////////////////////////////////////////////////////////////////////////////////////////////
-package com.pixelgamelibrary.backend.libgdx;
-
-import com.pixelgamelibrary.api.interfaces.AssetI;
-import com.pixelgamelibrary.api.storage.Storage;
-import com.pixelgamelibrary.backend.libgdx.assets.AssetsLibGDXStorage;
-
-/**
- *
- * @author robertvokac
- */
-public class AssetLibGDXImpl implements AssetI {
-
-    Storage assetsStorage = null;
-    @Override
-    public Storage getAssets() {
-        if(assetsStorage == null) {
-            assetsStorage = new AssetsLibGDXStorage();
-        }
-        return assetsStorage;
-    }
-
-   
-
-}
diff --git a/src/main/java/com/pixelgamelibrary/backend/libgdx/AudioLibGDXImpl.java b/src/main/java/com/pixelgamelibrary/backend/libgdx/AudioLibGDXImpl.java
index 00c55db..51a93f1 100644
--- a/src/main/java/com/pixelgamelibrary/backend/libgdx/AudioLibGDXImpl.java
+++ b/src/main/java/com/pixelgamelibrary/backend/libgdx/AudioLibGDXImpl.java
@@ -19,13 +19,13 @@
 ///////////////////////////////////////////////////////////////////////////////////////////////
 package com.pixelgamelibrary.backend.libgdx;
 
-import com.pixelgamelibrary.api.interfaces.AudioI;
+import com.pixelgamelibrary.api.interfaces.Audio;
 
 /**
  *
  * @author robertvokac
  */
-public class AudioLibGDXImpl implements AudioI {
+public class AudioLibGDXImpl implements Audio {
 
    
 
diff --git a/src/main/java/com/pixelgamelibrary/backend/libgdx/FilesLibGDXImpl.java b/src/main/java/com/pixelgamelibrary/backend/libgdx/FilesLibGDXImpl.java
new file mode 100644
index 0000000..c446f3a
--- /dev/null
+++ b/src/main/java/com/pixelgamelibrary/backend/libgdx/FilesLibGDXImpl.java
@@ -0,0 +1,83 @@
+///////////////////////////////////////////////////////////////////////////////////////////////
+// Pixel: Game library.
+// Copyright (C) 2024 the original author or authors.
+//
+// This program is free software: you can redistribute it and/or
+// modify it under the terms of the GNU General Public License
+// as published by the Free Software Foundation, either version 3
+// of the License, or (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program. If not, see 
+// <https://www.gnu.org/licenses/> or write to the Free Software
+// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+///////////////////////////////////////////////////////////////////////////////////////////////
+package com.pixelgamelibrary.backend.libgdx;
+
+import com.pixelgamelibrary.backend.libgdx.storage.StorageFactory;
+import com.pixelgamelibrary.api.storage.Storage;
+import com.pixelgamelibrary.api.interfaces.Files;
+import com.pixelgamelibrary.backend.libgdx.assets.AssetsLibGDXStorage;
+
+/**
+ *
+ * @author robertvokac
+ */
+public class FilesLibGDXImpl implements Files {
+    Storage assetsStorage = null;
+
+    @Override
+    public Storage local() {
+        return StorageFactory.getStorage();
+    }
+
+    @Override
+    public Storage assets() {
+        if(assetsStorage == null) {
+            assetsStorage = new AssetsLibGDXStorage();
+        }
+        return assetsStorage;    }
+
+    @Override
+    public Storage external() {
+        throw new UnsupportedOperationException("Not supported yet."); // Generated from nbfs://nbhost/SystemFileSystem/Templates/Classes/Code/GeneratedMethodBody
+    }
+
+    @Override
+    public Storage relative(String absolutePath) {
+        throw new UnsupportedOperationException("Not supported yet."); // Generated from nbfs://nbhost/SystemFileSystem/Templates/Classes/Code/GeneratedMethodBody
+    }
+
+    @Override
+    public Storage absolute() {
+        throw new UnsupportedOperationException("Not supported yet."); // Generated from nbfs://nbhost/SystemFileSystem/Templates/Classes/Code/GeneratedMethodBody
+    }
+
+    @Override
+    public Storage tmp() {
+        throw new UnsupportedOperationException("Not supported yet."); // Generated from nbfs://nbhost/SystemFileSystem/Templates/Classes/Code/GeneratedMethodBody
+    }
+
+    @Override
+    public boolean isExternalStorageAvailable() {
+        throw new UnsupportedOperationException("Not supported yet."); // Generated from nbfs://nbhost/SystemFileSystem/Templates/Classes/Code/GeneratedMethodBody
+    }
+
+    @Override
+    public String getLocalStoragePath() {
+        throw new UnsupportedOperationException("Not supported yet."); // Generated from nbfs://nbhost/SystemFileSystem/Templates/Classes/Code/GeneratedMethodBody
+    }
+
+    @Override
+    public String getExternalStoragePath() {
+        throw new UnsupportedOperationException("Not supported yet."); // Generated from nbfs://nbhost/SystemFileSystem/Templates/Classes/Code/GeneratedMethodBody
+    }
+
+   
+
+}
diff --git a/src/main/java/com/pixelgamelibrary/backend/libgdx/GraphicsLibGDXImpl.java b/src/main/java/com/pixelgamelibrary/backend/libgdx/GraphicsLibGDXImpl.java
index 17af34b..1178ece 100644
--- a/src/main/java/com/pixelgamelibrary/backend/libgdx/GraphicsLibGDXImpl.java
+++ b/src/main/java/com/pixelgamelibrary/backend/libgdx/GraphicsLibGDXImpl.java
@@ -23,16 +23,17 @@ import com.badlogic.gdx.Gdx;
 import com.badlogic.gdx.Graphics;
 import com.pixelgamelibrary.api.WindowMode;
 import com.pixelgamelibrary.api.PixelException;
+import com.pixelgamelibrary.api.utils.Monitor;
 import java.util.Arrays;
 import java.util.List;
 import java.util.stream.Collectors;
-import com.pixelgamelibrary.api.interfaces.GraphicsI;
+//import com.pixelgamelibrary.api.interfaces.Graphics;
 
 /**
  *
  * @author robertvokac
  */
-public class GraphicsLibGDXImpl implements GraphicsI {
+public class GraphicsLibGDXImpl implements com.pixelgamelibrary.api.interfaces.Graphics {
 
     
     @Override
@@ -94,4 +95,9 @@ public class GraphicsLibGDXImpl implements GraphicsI {
 
     private Graphics.DisplayMode originalDisplayMode = null;
 
+    @Override
+    public List<Monitor> getMonitors() {
+        throw new UnsupportedOperationException("Not supported yet."); // Generated from nbfs://nbhost/SystemFileSystem/Templates/Classes/Code/GeneratedMethodBody
+    }
+
 }
diff --git a/src/main/java/com/pixelgamelibrary/backend/libgdx/InputLibGDXImpl.java b/src/main/java/com/pixelgamelibrary/backend/libgdx/InputLibGDXImpl.java
index cddd0b4..e394756 100644
--- a/src/main/java/com/pixelgamelibrary/backend/libgdx/InputLibGDXImpl.java
+++ b/src/main/java/com/pixelgamelibrary/backend/libgdx/InputLibGDXImpl.java
@@ -19,13 +19,13 @@
 ///////////////////////////////////////////////////////////////////////////////////////////////
 package com.pixelgamelibrary.backend.libgdx;
 
-import com.pixelgamelibrary.api.interfaces.InputI;
+import com.pixelgamelibrary.api.interfaces.Input;
 
 /**
  *
  * @author robertvokac
  */
-public class InputLibGDXImpl implements InputI {
+public class InputLibGDXImpl implements Input {
 
    
 
diff --git a/src/main/java/com/pixelgamelibrary/backend/libgdx/InternalLibGDXImpl.java b/src/main/java/com/pixelgamelibrary/backend/libgdx/InternalLibGDXImpl.java
index 99723d7..580a5cd 100644
--- a/src/main/java/com/pixelgamelibrary/backend/libgdx/InternalLibGDXImpl.java
+++ b/src/main/java/com/pixelgamelibrary/backend/libgdx/InternalLibGDXImpl.java
@@ -19,13 +19,13 @@
 ///////////////////////////////////////////////////////////////////////////////////////////////
 package com.pixelgamelibrary.backend.libgdx;
 
-import com.pixelgamelibrary.api.interfaces.InternalI;
+import com.pixelgamelibrary.api.interfaces.Internal;
 
 /**
  *
  * @author robertvokac
  */
-public class InternalLibGDXImpl implements InternalI {
+public class InternalLibGDXImpl implements Internal {
 
    
 
diff --git a/src/main/java/com/pixelgamelibrary/backend/libgdx/NetLibGDXImpl.java b/src/main/java/com/pixelgamelibrary/backend/libgdx/NetLibGDXImpl.java
index 38c5f21..3881540 100644
--- a/src/main/java/com/pixelgamelibrary/backend/libgdx/NetLibGDXImpl.java
+++ b/src/main/java/com/pixelgamelibrary/backend/libgdx/NetLibGDXImpl.java
@@ -19,13 +19,13 @@
 ///////////////////////////////////////////////////////////////////////////////////////////////
 package com.pixelgamelibrary.backend.libgdx;
 
-import com.pixelgamelibrary.api.interfaces.NetI;
+import com.pixelgamelibrary.api.interfaces.Net;
 
 /**
  *
  * @author robertvokac
  */
-public class NetLibGDXImpl implements NetI {
+public class NetLibGDXImpl implements Net {
 
    
 
diff --git a/src/main/java/com/pixelgamelibrary/backend/libgdx/PixelBackendLibGDX.java b/src/main/java/com/pixelgamelibrary/backend/libgdx/PixelBackendLibGDX.java
index 5811b64..d043e5d 100644
--- a/src/main/java/com/pixelgamelibrary/backend/libgdx/PixelBackendLibGDX.java
+++ b/src/main/java/com/pixelgamelibrary/backend/libgdx/PixelBackendLibGDX.java
@@ -19,16 +19,15 @@
 ///////////////////////////////////////////////////////////////////////////////////////////////
 package com.pixelgamelibrary.backend.libgdx;
 
-import com.pixelgamelibrary.api.interfaces.AppI;
-import com.pixelgamelibrary.api.interfaces.AssetI;
-import com.pixelgamelibrary.api.interfaces.AudioI;
-import com.pixelgamelibrary.api.interfaces.GraphicsI;
-import com.pixelgamelibrary.api.interfaces.InputI;
-import com.pixelgamelibrary.api.interfaces.InternalI;
-import com.pixelgamelibrary.api.interfaces.UtilsI;
-import com.pixelgamelibrary.api.interfaces.StorageI;
-import com.pixelgamelibrary.api.interfaces.NetI;
 import com.pixelgamelibrary.api.interfaces.PixelBackend;
+import com.pixelgamelibrary.api.interfaces.Files;
+import com.pixelgamelibrary.api.interfaces.Audio;
+import com.pixelgamelibrary.api.interfaces.Graphics;
+import com.pixelgamelibrary.api.interfaces.Input;
+import com.pixelgamelibrary.api.interfaces.Internal;
+import com.pixelgamelibrary.api.interfaces.Net;
+import com.pixelgamelibrary.api.interfaces.Utils;
+import com.pixelgamelibrary.api.interfaces.App;
 
 /**
  *
@@ -36,19 +35,18 @@ import com.pixelgamelibrary.api.interfaces.PixelBackend;
  */
 public class PixelBackendLibGDX implements PixelBackend {
 
-    private AppI pixelAppLibGdxImpl = null;
-    private GraphicsI pixelGraphicsLibGdxImpl = null;
-    private AudioI pixelAudioLibGdxImpl = null;
-    private InputI pixelInputLibGdxImpl = null;
-    private NetI pixelNetLibGdxImpl = null;
-    private AssetI pixelAssetLibGdxImpl = null;
-    private StorageI pixelStorageLibGdxImpl = null;
-    private UtilsI pixelUtilsLibGdxImpl = null;
-    private InternalI pixelInternalLibGdxImpl = null;
+    private App pixelAppLibGdxImpl = null;
+    private Graphics pixelGraphicsLibGdxImpl = null;
+    private Audio pixelAudioLibGdxImpl = null;
+    private Input pixelInputLibGdxImpl = null;
+    private Net pixelNetLibGdxImpl = null;
+    private Files pixelFilesLibGdxImpl = null;
+    private Utils pixelUtilsLibGdxImpl = null;
+    private Internal pixelInternalLibGdxImpl = null;
     
 
     @Override
-    public GraphicsI graphics() {
+    public Graphics graphics() {
         if (pixelGraphicsLibGdxImpl == null) {
             pixelGraphicsLibGdxImpl = new GraphicsLibGDXImpl();
         }
@@ -56,7 +54,7 @@ public class PixelBackendLibGDX implements PixelBackend {
     }
 
     @Override
-    public AudioI audio() {
+    public Audio audio() {
 
         if (pixelAudioLibGdxImpl == null) {
             pixelAudioLibGdxImpl = new AudioLibGDXImpl();
@@ -65,7 +63,7 @@ public class PixelBackendLibGDX implements PixelBackend {
     }
 
     @Override
-    public InputI input() {
+    public Input input() {
 
         if (pixelInputLibGdxImpl == null) {
             pixelInputLibGdxImpl = new InputLibGDXImpl();
@@ -74,7 +72,7 @@ public class PixelBackendLibGDX implements PixelBackend {
     }
 
     @Override
-    public NetI net() {
+    public Net net() {
 
         if (pixelNetLibGdxImpl == null) {
             pixelNetLibGdxImpl = new NetLibGDXImpl();
@@ -83,25 +81,16 @@ public class PixelBackendLibGDX implements PixelBackend {
     }
 
     @Override
-    public AssetI asset() {
+    public Files files() {
 
-        if (pixelAssetLibGdxImpl == null) {
-            pixelAssetLibGdxImpl = new AssetLibGDXImpl();
+        if (pixelFilesLibGdxImpl == null) {
+            pixelFilesLibGdxImpl = new FilesLibGDXImpl();
         }
-        return pixelAssetLibGdxImpl;
+        return pixelFilesLibGdxImpl;
     }
 
     @Override
-    public StorageI storage() {
-
-        if (pixelStorageLibGdxImpl == null) {
-            pixelStorageLibGdxImpl = new StorageLibGDXImpl();
-        }
-        return pixelStorageLibGdxImpl;
-    }
-
-    @Override
-    public UtilsI utils() {
+    public Utils utils() {
 
         if (pixelUtilsLibGdxImpl == null) {
             pixelUtilsLibGdxImpl = new UtilsLibGDXImpl(app());
@@ -110,7 +99,7 @@ public class PixelBackendLibGDX implements PixelBackend {
     }
 
     @Override
-    public AppI app() {
+    public App app() {
         if (pixelAppLibGdxImpl == null) {
             pixelAppLibGdxImpl = new AppLibGDXImpl();
         }
@@ -118,7 +107,7 @@ public class PixelBackendLibGDX implements PixelBackend {
     }
 
     @Override
-    public InternalI internal() {
+    public Internal internal() {
 
         if (pixelInternalLibGdxImpl == null) {
             pixelInternalLibGdxImpl = new InternalLibGDXImpl();
diff --git a/src/main/java/com/pixelgamelibrary/backend/libgdx/StorageLibGDXImpl.java b/src/main/java/com/pixelgamelibrary/backend/libgdx/StorageLibGDXImpl.java
deleted file mode 100644
index 349dd7d..0000000
--- a/src/main/java/com/pixelgamelibrary/backend/libgdx/StorageLibGDXImpl.java
+++ /dev/null
@@ -1,39 +0,0 @@
-///////////////////////////////////////////////////////////////////////////////////////////////
-// Pixel: Game library.
-// Copyright (C) 2024 the original author or authors.
-//
-// This program is free software: you can redistribute it and/or
-// modify it under the terms of the GNU General Public License
-// as published by the Free Software Foundation, either version 3
-// of the License, or (at your option) any later version.
-//
-// This program is distributed in the hope that it will be useful,
-// but WITHOUT ANY WARRANTY; without even the implied warranty of
-// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-// GNU General Public License for more details.
-//
-// You should have received a copy of the GNU General Public License
-// along with this program. If not, see 
-// <https://www.gnu.org/licenses/> or write to the Free Software
-// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
-///////////////////////////////////////////////////////////////////////////////////////////////
-package com.pixelgamelibrary.backend.libgdx;
-
-import com.pixelgamelibrary.api.interfaces.StorageI;
-import com.pixelgamelibrary.backend.libgdx.storage.StorageFactory;
-import com.pixelgamelibrary.api.storage.Storage;
-
-/**
- *
- * @author robertvokac
- */
-public class StorageLibGDXImpl implements StorageI {
-
-    @Override
-    public Storage getStorage() {
-        return StorageFactory.getStorage();
-    }
-
-   
-
-}
diff --git a/src/main/java/com/pixelgamelibrary/backend/libgdx/UtilsLibGDXImpl.java b/src/main/java/com/pixelgamelibrary/backend/libgdx/UtilsLibGDXImpl.java
index 2b24108..5a911c5 100644
--- a/src/main/java/com/pixelgamelibrary/backend/libgdx/UtilsLibGDXImpl.java
+++ b/src/main/java/com/pixelgamelibrary/backend/libgdx/UtilsLibGDXImpl.java
@@ -22,25 +22,27 @@ package com.pixelgamelibrary.backend.libgdx;
 import com.badlogic.gdx.utils.Base64Coder;
 import com.badlogic.gdx.utils.XmlReader;
 import com.pixelgamelibrary.api.interfaces.XmlElement;
-import com.pixelgamelibrary.api.interfaces.UtilsI;
 import java.util.List;
 import java.util.Map;
 import com.badlogic.gdx.utils.compression.Lzma;
 import com.pixelgamelibrary.api.PixelException;
-import com.pixelgamelibrary.api.interfaces.AppI;
 import java.io.ByteArrayInputStream;
 import java.io.ByteArrayOutputStream;
 import java.io.IOException;
+import com.pixelgamelibrary.api.interfaces.Utils;
+import com.pixelgamelibrary.api.interfaces.App;
+import com.pixelgamelibrary.api.utils.CollectionUtils;
+import com.pixelgamelibrary.api.utils.ReflectionUtils;
 
 /**
  *
  * @author robertvokac
  */
-public class UtilsLibGDXImpl implements UtilsI {
+public class UtilsLibGDXImpl implements Utils {
 
-    private final AppI appI;
+    private final App appI;
 
-    public UtilsLibGDXImpl(AppI appI) {
+    public UtilsLibGDXImpl(App appI) {
         this.appI = appI;
     }
 
@@ -112,4 +114,14 @@ public class UtilsLibGDXImpl implements UtilsI {
         return outputStream.toByteArray();
     }
 
+    @Override
+    public ReflectionUtils reflection() {
+        throw new UnsupportedOperationException("Not supported yet."); // Generated from nbfs://nbhost/SystemFileSystem/Templates/Classes/Code/GeneratedMethodBody
+    }
+
+    @Override
+    public CollectionUtils collections() {
+        throw new UnsupportedOperationException("Not supported yet."); // Generated from nbfs://nbhost/SystemFileSystem/Templates/Classes/Code/GeneratedMethodBody
+    }
+
 }
diff --git a/src/main/java/com/pixelgamelibrary/backend/libgdx/assets/AssetsLibGDXStorage.java b/src/main/java/com/pixelgamelibrary/backend/libgdx/assets/AssetsLibGDXStorage.java
index fe27a1f..1e86c9e 100644
--- a/src/main/java/com/pixelgamelibrary/backend/libgdx/assets/AssetsLibGDXStorage.java
+++ b/src/main/java/com/pixelgamelibrary/backend/libgdx/assets/AssetsLibGDXStorage.java
@@ -6,6 +6,7 @@ import com.pixelgamelibrary.api.Platform;
 import com.pixelgamelibrary.api.storage.FileType;
 import com.pixelgamelibrary.api.storage.RegularFileType;
 import com.pixelgamelibrary.api.storage.Storage;
+import com.pixelgamelibrary.api.storage.StorageType;
 import java.util.List;
 import java.util.stream.Collectors;
 import lombok.Getter;
@@ -184,4 +185,39 @@ public class AssetsLibGDXStorage implements Storage {
         }
     }
 
+    @Override
+    public byte[] backup(String methodName) {
+        throw new UnsupportedOperationException("Not supported yet."); // Generated from nbfs://nbhost/SystemFileSystem/Templates/Classes/Code/GeneratedMethodBody
+    }
+
+    @Override
+    public void restore(String methodName, byte[] data) {
+        throw createUnsupportedOperationException();
+    }
+
+    @Override
+    public boolean isReadonly() {
+        return true;
+    }
+
+    @Override
+    public void clear() {
+        throw createUnsupportedOperationException();
+    }
+
+    @Override
+    public boolean isEmpty() {
+        throw new UnsupportedOperationException("Not supported yet."); // Generated from nbfs://nbhost/SystemFileSystem/Templates/Classes/Code/GeneratedMethodBody
+    }
+
+    @Override
+    public long size() {
+        throw new UnsupportedOperationException("Not supported yet."); // Generated from nbfs://nbhost/SystemFileSystem/Templates/Classes/Code/GeneratedMethodBody
+    }
+
+    @Override
+    public StorageType getStorageType() {
+        return StorageType.ASSETS;
+    }
+
 }
diff --git a/src/main/java/com/pixelgamelibrary/backend/libgdx/game/LibGdxGame.java b/src/main/java/com/pixelgamelibrary/backend/libgdx/game/LibGdxGame.java
index 4c74593..281636b 100644
--- a/src/main/java/com/pixelgamelibrary/backend/libgdx/game/LibGdxGame.java
+++ b/src/main/java/com/pixelgamelibrary/backend/libgdx/game/LibGdxGame.java
@@ -19,11 +19,11 @@
 ///////////////////////////////////////////////////////////////////////////////////////////////
 package com.pixelgamelibrary.backend.libgdx.game;
 
-import com.pixelgamelibrary.api.GameI;
 import com.pixelgamelibrary.api.GameWrapper;
 import com.pixelgamelibrary.api.OnSetScreenListener;
-import com.pixelgamelibrary.api.ScreenI;
 import com.pixelgamelibrary.backend.libgdx.screen.LibGdxScreen;
+import com.pixelgamelibrary.api.Game;
+import com.pixelgamelibrary.api.Screen;
 
 /**
  *
@@ -31,10 +31,10 @@ import com.pixelgamelibrary.backend.libgdx.screen.LibGdxScreen;
  */
 public class LibGdxGame extends com.badlogic.gdx.Game implements OnSetScreenListener {
 
-    private final GameI game;
+    private final Game game;
 
     @Override
-    public void onSetScreen(ScreenI screen) {
+    public void onSetScreen(Screen screen) {
         setScreen(new LibGdxScreen(screen));
         System.out.println("LibGdxGame:onSetScreen");
     }
@@ -43,7 +43,7 @@ public class LibGdxGame extends com.badlogic.gdx.Game implements OnSetScreenList
 
         private final LibGdxGame libGdxGame;
 
-        public LibGdxGameWrapper(GameI gameI, LibGdxGame libGdxGame) {
+        public LibGdxGameWrapper(Game gameI, LibGdxGame libGdxGame) {
             super(gameI);
             this.libGdxGame = libGdxGame;
             gameI.setOnSetScreenListener(libGdxGame);
@@ -65,7 +65,7 @@ public class LibGdxGame extends com.badlogic.gdx.Game implements OnSetScreenList
 
     }
 
-    public LibGdxGame(GameI game) {
+    public LibGdxGame(Game game) {
         this.game = new LibGdxGameWrapper(game, this);
     }
 
diff --git a/src/main/java/com/pixelgamelibrary/backend/libgdx/screen/LibGdxScreen.java b/src/main/java/com/pixelgamelibrary/backend/libgdx/screen/LibGdxScreen.java
index c70f0e3..f433606 100644
--- a/src/main/java/com/pixelgamelibrary/backend/libgdx/screen/LibGdxScreen.java
+++ b/src/main/java/com/pixelgamelibrary/backend/libgdx/screen/LibGdxScreen.java
@@ -19,9 +19,9 @@
 ///////////////////////////////////////////////////////////////////////////////////////////////
 package com.pixelgamelibrary.backend.libgdx.screen;
 
-import com.pixelgamelibrary.api.ScreenI;
 import com.pixelgamelibrary.api.ScreenWrapper;
 import lombok.Getter;
+import com.pixelgamelibrary.api.Screen;
 
 /**
  *
@@ -30,20 +30,20 @@ import lombok.Getter;
 public class LibGdxScreen extends com.badlogic.gdx.ScreenAdapter {
 
     @Getter
-    private final ScreenI pixelScreen;
+    private final Screen pixelScreen;
 
     class LibGdxScreenWrapper extends ScreenWrapper {
 
         private final LibGdxScreen libGdxScreen;
 
-        public LibGdxScreenWrapper(ScreenI screen, LibGdxScreen libGdxScreenIn) {
+        public LibGdxScreenWrapper(Screen screen, LibGdxScreen libGdxScreenIn) {
             super(screen);
             this.libGdxScreen = libGdxScreenIn;
         }
 
     }
 
-    public LibGdxScreen(ScreenI screen) {
+    public LibGdxScreen(Screen screen) {
         this.pixelScreen = new LibGdxScreenWrapper(screen, this);
         System.out.println("aaaaaa");
     }
diff --git a/src/main/java/com/pixelgamelibrary/backend/libgdx/storage/DesktopAndroidStorage.java b/src/main/java/com/pixelgamelibrary/backend/libgdx/storage/DesktopAndroidStorage.java
index abb4020..2375414 100644
--- a/src/main/java/com/pixelgamelibrary/backend/libgdx/storage/DesktopAndroidStorage.java
+++ b/src/main/java/com/pixelgamelibrary/backend/libgdx/storage/DesktopAndroidStorage.java
@@ -21,10 +21,12 @@ package com.pixelgamelibrary.backend.libgdx.storage;
 
 import com.badlogic.gdx.Gdx;
 import com.pixelgamelibrary.api.Pixel;
+import com.pixelgamelibrary.api.Platform;
 import com.pixelgamelibrary.api.storage.FileType;
 import com.pixelgamelibrary.api.storage.RegularFileType;
 import com.pixelgamelibrary.api.storage.Storage;
 import com.pixelgamelibrary.api.storage.StorageException;
+import com.pixelgamelibrary.api.storage.StorageType;
 import java.util.Arrays;
 import java.util.List;
 import java.util.stream.Collectors;
@@ -245,5 +247,40 @@ public abstract class DesktopAndroidStorage implements Storage {
         return isTextFile(content);
     }
 
+    @Override
+    public byte[] backup(String methodName) {
+        throw new UnsupportedOperationException("Not supported yet."); // Generated from nbfs://nbhost/SystemFileSystem/Templates/Classes/Code/GeneratedMethodBody
+    }
+
+    @Override
+    public void restore(String methodName, byte[] data) {
+        throw new UnsupportedOperationException("Not supported yet."); // Generated from nbfs://nbhost/SystemFileSystem/Templates/Classes/Code/GeneratedMethodBody
+    }
+
+    @Override
+    public boolean isReadonly() {
+        throw new UnsupportedOperationException("Not supported yet."); // Generated from nbfs://nbhost/SystemFileSystem/Templates/Classes/Code/GeneratedMethodBody
+    }
+
+    @Override
+    public void clear() {
+        throw new UnsupportedOperationException("Not supported yet."); // Generated from nbfs://nbhost/SystemFileSystem/Templates/Classes/Code/GeneratedMethodBody
+    }
+
+    @Override
+    public boolean isEmpty() {
+        throw new UnsupportedOperationException("Not supported yet."); // Generated from nbfs://nbhost/SystemFileSystem/Templates/Classes/Code/GeneratedMethodBody
+    }
+
+    @Override
+    public long size() {
+        throw new UnsupportedOperationException("Not supported yet."); // Generated from nbfs://nbhost/SystemFileSystem/Templates/Classes/Code/GeneratedMethodBody
+    }
+
+    @Override
+    public StorageType getStorageType() {
+        throw new UnsupportedOperationException("Not supported yet."); // Generated from nbfs://nbhost/SystemFileSystem/Templates/Classes/Code/GeneratedMethodBody
+    }
+
 
 }
diff --git a/src/test/java/com/pixelgamelibrary/backend/libgdx/storage/DesktopAndroidStorageTest.java b/src/test/java/com/pixelgamelibrary/backend/libgdx/storage/DesktopAndroidStorageTest.java
index 195ff1b..a7bba66 100644
--- a/src/test/java/com/pixelgamelibrary/backend/libgdx/storage/DesktopAndroidStorageTest.java
+++ b/src/test/java/com/pixelgamelibrary/backend/libgdx/storage/DesktopAndroidStorageTest.java
@@ -2,19 +2,9 @@ package com.pixelgamelibrary.backend.libgdx.storage;
 
 import com.badlogic.gdx.Gdx;
 import com.badlogic.gdx.files.FileHandle;
-import com.pixelgamelibrary.api.GameI;
 import com.pixelgamelibrary.api.Pixel;
 import com.pixelgamelibrary.api.Platform;
-import com.pixelgamelibrary.api.interfaces.AppI;
-import com.pixelgamelibrary.api.interfaces.AssetI;
-import com.pixelgamelibrary.api.interfaces.AudioI;
-import com.pixelgamelibrary.api.interfaces.GraphicsI;
-import com.pixelgamelibrary.api.interfaces.InputI;
-import com.pixelgamelibrary.api.interfaces.InternalI;
-import com.pixelgamelibrary.api.interfaces.NetI;
 import com.pixelgamelibrary.api.interfaces.PixelBackend;
-import com.pixelgamelibrary.api.interfaces.StorageI;
-import com.pixelgamelibrary.api.interfaces.UtilsI;
 import com.pixelgamelibrary.api.storage.RegularFileType;
 import com.pixelgamelibrary.api.storage.StorageException;
 import org.junit.jupiter.api.BeforeEach;
@@ -28,6 +18,19 @@ import static org.junit.jupiter.api.Assertions.*;
 import org.junit.jupiter.api.BeforeAll;
 import org.junit.jupiter.api.Disabled;
 import static org.mockito.Mockito.*;
+import com.pixelgamelibrary.api.interfaces.Files;
+import com.pixelgamelibrary.api.interfaces.Audio;
+import com.pixelgamelibrary.api.interfaces.Graphics;
+import com.pixelgamelibrary.api.interfaces.Input;
+import com.pixelgamelibrary.api.interfaces.Internal;
+import com.pixelgamelibrary.api.interfaces.Net;
+import com.pixelgamelibrary.api.interfaces.Utils;
+import com.pixelgamelibrary.api.interfaces.App;
+import com.pixelgamelibrary.api.Game;
+import com.pixelgamelibrary.api.PixelFeature;
+import com.pixelgamelibrary.api.utils.ClipBoard;
+import com.pixelgamelibrary.api.utils.LogLevel;
+import com.pixelgamelibrary.api.utils.Preferences;
 
 class DesktopAndroidStorageTest {
 
@@ -39,8 +42,8 @@ class DesktopAndroidStorageTest {
     static void setUpBeforeAll() {
         PixelBackend dummyPixelBackend = new PixelBackend() {
             @Override
-            public AppI app() {
-                return new AppI() {
+            public App app() {
+                return new App() {
                     @Override
                     public Platform getPlatform() {
                         throw new UnsupportedOperationException("Not supported yet."); // Generated from nbfs://nbhost/SystemFileSystem/Templates/Classes/Code/GeneratedMethodBody
@@ -86,12 +89,42 @@ class DesktopAndroidStorageTest {
                     }
 
                     @Override
-                    public void setGame(GameI game) {
+                    public void setGame(Game game) {
                         throw new UnsupportedOperationException("Not supported yet."); // Generated from nbfs://nbhost/SystemFileSystem/Templates/Classes/Code/GeneratedMethodBody
                     }
 
                     @Override
-                    public GameI getGame() {
+                    public Game getGame() {
+                        throw new UnsupportedOperationException("Not supported yet."); // Generated from nbfs://nbhost/SystemFileSystem/Templates/Classes/Code/GeneratedMethodBody
+                    }
+
+                    @Override
+                    public void setLogLevel(LogLevel logLevel) {
+                        throw new UnsupportedOperationException("Not supported yet."); // Generated from nbfs://nbhost/SystemFileSystem/Templates/Classes/Code/GeneratedMethodBody
+                    }
+
+                    @Override
+                    public Preferences getPreferences(String preferencesName) {
+                        throw new UnsupportedOperationException("Not supported yet."); // Generated from nbfs://nbhost/SystemFileSystem/Templates/Classes/Code/GeneratedMethodBody
+                    }
+
+                    @Override
+                    public boolean isFeatureEnabled(PixelFeature feature) {
+                        throw new UnsupportedOperationException("Not supported yet."); // Generated from nbfs://nbhost/SystemFileSystem/Templates/Classes/Code/GeneratedMethodBody
+                    }
+
+                    @Override
+                    public boolean isMobileDevice() {
+                        throw new UnsupportedOperationException("Not supported yet."); // Generated from nbfs://nbhost/SystemFileSystem/Templates/Classes/Code/GeneratedMethodBody
+                    }
+
+                    @Override
+                    public void postRunnable(Runnable runnable) {
+                        throw new UnsupportedOperationException("Not supported yet."); // Generated from nbfs://nbhost/SystemFileSystem/Templates/Classes/Code/GeneratedMethodBody
+                    }
+
+                    @Override
+                    public ClipBoard getClipBoard() {
                         throw new UnsupportedOperationException("Not supported yet."); // Generated from nbfs://nbhost/SystemFileSystem/Templates/Classes/Code/GeneratedMethodBody
                     }
 
@@ -99,42 +132,37 @@ class DesktopAndroidStorageTest {
             }
 
             @Override
-            public GraphicsI graphics() {
+            public Graphics graphics() {
                 throw new UnsupportedOperationException("Not supported yet."); // Generated from nbfs://nbhost/SystemFileSystem/Templates/Classes/Code/GeneratedMethodBody
             }
 
             @Override
-            public AudioI audio() {
+            public Audio audio() {
                 throw new UnsupportedOperationException("Not supported yet."); // Generated from nbfs://nbhost/SystemFileSystem/Templates/Classes/Code/GeneratedMethodBody
             }
 
             @Override
-            public InputI input() {
+            public Input input() {
                 throw new UnsupportedOperationException("Not supported yet."); // Generated from nbfs://nbhost/SystemFileSystem/Templates/Classes/Code/GeneratedMethodBody
             }
 
             @Override
-            public NetI net() {
+            public Net net() {
                 throw new UnsupportedOperationException("Not supported yet."); // Generated from nbfs://nbhost/SystemFileSystem/Templates/Classes/Code/GeneratedMethodBody
             }
 
             @Override
-            public AssetI asset() {
+            public Files files() {
                 throw new UnsupportedOperationException("Not supported yet."); // Generated from nbfs://nbhost/SystemFileSystem/Templates/Classes/Code/GeneratedMethodBody
             }
 
             @Override
-            public StorageI storage() {
+            public Utils utils() {
                 throw new UnsupportedOperationException("Not supported yet."); // Generated from nbfs://nbhost/SystemFileSystem/Templates/Classes/Code/GeneratedMethodBody
             }
 
             @Override
-            public UtilsI utils() {
-                throw new UnsupportedOperationException("Not supported yet."); // Generated from nbfs://nbhost/SystemFileSystem/Templates/Classes/Code/GeneratedMethodBody
-            }
-
-            @Override
-            public InternalI internal() {
+            public Internal internal() {
                 throw new UnsupportedOperationException("Not supported yet."); // Generated from nbfs://nbhost/SystemFileSystem/Templates/Classes/Code/GeneratedMethodBody
             }
         };