diff --git a/gdxapp4d-app-calculator/src/main/java/love/distributedrebirth/gdxapp4d/app/calculator/CalculatorComponent.java b/gdxapp4d-app-calculator/src/main/java/love/distributedrebirth/gdxapp4d/app/calculator/CalculatorComponent.java
index 01452293..a87485d5 100644
--- a/gdxapp4d-app-calculator/src/main/java/love/distributedrebirth/gdxapp4d/app/calculator/CalculatorComponent.java
+++ b/gdxapp4d-app-calculator/src/main/java/love/distributedrebirth/gdxapp4d/app/calculator/CalculatorComponent.java
@@ -34,6 +34,6 @@ public class CalculatorComponent {
 	@Deactivate
 	void close() {
 		log.debug(this, SystemGdxLog.DEACTIVATE);
-		deskAppService.installDeskApp(DeskAppMenuSection.PROGRAMMING, launcher);
+		deskAppService.removeDeskApp(DeskAppMenuSection.PROGRAMMING, launcher);
 	}
 }
diff --git a/gdxapp4d-app-hewallet/src/main/java/love/distributedrebirth/gdxapp4d/app/hewallet/HeWalletComponent.java b/gdxapp4d-app-hewallet/src/main/java/love/distributedrebirth/gdxapp4d/app/hewallet/HeWalletComponent.java
index 5eb4b70a..c4e27133 100644
--- a/gdxapp4d-app-hewallet/src/main/java/love/distributedrebirth/gdxapp4d/app/hewallet/HeWalletComponent.java
+++ b/gdxapp4d-app-hewallet/src/main/java/love/distributedrebirth/gdxapp4d/app/hewallet/HeWalletComponent.java
@@ -34,6 +34,6 @@ public class HeWalletComponent {
 	@Deactivate
 	void close() {
 		log.debug(this, SystemGdxLog.DEACTIVATE);
-		deskAppService.installDeskApp(DeskAppMenuSection.INTERNET, launcher);
+		deskAppService.removeDeskApp(DeskAppMenuSection.INTERNET, launcher);
 	}
 }
diff --git a/gdxapp4d-app-tosamp/src/main/java/love/distributedrebirth/gdxapp4d/app/tosamp/TosAmpComponent.java b/gdxapp4d-app-tosamp/src/main/java/love/distributedrebirth/gdxapp4d/app/tosamp/TosAmpComponent.java
index 0dd89dde..9b23e0a4 100644
--- a/gdxapp4d-app-tosamp/src/main/java/love/distributedrebirth/gdxapp4d/app/tosamp/TosAmpComponent.java
+++ b/gdxapp4d-app-tosamp/src/main/java/love/distributedrebirth/gdxapp4d/app/tosamp/TosAmpComponent.java
@@ -38,6 +38,6 @@ public class TosAmpComponent {
 	@Deactivate
 	void close() {
 		log.debug(this, SystemGdxLog.DEACTIVATE);
-		deskAppService.installDeskApp(DeskAppMenuSection.MULTIMEDIA, launcher);
+		deskAppService.removeDeskApp(DeskAppMenuSection.MULTIMEDIA, launcher);
 	}
 }
diff --git a/gdxapp4d-vrgem4/src/main/java/love/distributedrebirth/gdxapp4d/vrgem4/screen/AbstractScreenDesktop.java b/gdxapp4d-vrgem4/src/main/java/love/distributedrebirth/gdxapp4d/vrgem4/screen/AbstractScreenDesktop.java
index c3400b3d..55adc2e4 100644
--- a/gdxapp4d-vrgem4/src/main/java/love/distributedrebirth/gdxapp4d/vrgem4/screen/AbstractScreenDesktop.java
+++ b/gdxapp4d-vrgem4/src/main/java/love/distributedrebirth/gdxapp4d/vrgem4/screen/AbstractScreenDesktop.java
@@ -16,7 +16,6 @@ import com.badlogic.gdx.utils.ScreenUtils;
 import imgui.ImGui;
 import imgui.flag.ImGuiCond;
 import imgui.flag.ImGuiWindowFlags;
-import imgui.type.ImBoolean;
 import love.distributedrebirth.gdxapp4d.tos4.service.SystemGdxBootArgs;
 import love.distributedrebirth.gdxapp4d.tos4.service.SystemGdxTerminal;
 import love.distributedrebirth.gdxapp4d.vrgem4.ImGuiSetup;
@@ -35,7 +34,6 @@ public abstract class AbstractScreenDesktop extends ScreenAdapter implements Des
 	protected SpriteBatch batch;
 	protected BitmapFont font;
 	protected OrthographicCamera camera;
-	protected ImBoolean showImGuiDemo = new ImBoolean(false);
 	private final DeskTopScreenMenu screenMenu;
 	private final DeskAppController deskAppScreen;
 	private PerspectiveCamera cam;
@@ -128,9 +126,6 @@ public abstract class AbstractScreenDesktop extends ScreenAdapter implements Des
 		
 		DeskTopScreen appScreen = this;
 		screenMenu.renderMenu(appScreen);
-		if (showImGuiDemo.get()) {
-			ImGui.showDemoWindow(showImGuiDemo);
-		}
 		if (appScreen != null && appScreen.getDeskAppController().getCurrentDeskApp() != null) {
 			int sizeFlags = ImGuiCond.Always;
 			ImGui.setNextWindowPos(0, 28, sizeFlags);
diff --git a/gdxapp4d-vrgem4/src/main/java/love/distributedrebirth/gdxapp4d/vrgem4/view/DeskTopScreenMenu.java b/gdxapp4d-vrgem4/src/main/java/love/distributedrebirth/gdxapp4d/vrgem4/view/DeskTopScreenMenu.java
index 6431231e..85273178 100644
--- a/gdxapp4d-vrgem4/src/main/java/love/distributedrebirth/gdxapp4d/vrgem4/view/DeskTopScreenMenu.java
+++ b/gdxapp4d-vrgem4/src/main/java/love/distributedrebirth/gdxapp4d/vrgem4/view/DeskTopScreenMenu.java
@@ -277,9 +277,6 @@ public class DeskTopScreenMenu {
 				terminal.selectScreen(ScreenHelp.class);
 			}
 			ImGui.separator();
-			if (ImGui.menuItem(FontAwesomeIcons.Trademark + " ImGui Demo")) {
-//				GDXAppVrGem4.INSTANCE.showImGuiDemo.set(true);
-			}
 			if (ImGui.menuItem(FontAwesomeIcons.PowerOff + " Shutdown")) {
 				bootArgs.shutdown();
 			}
diff --git a/gdxapp4d-vrsys5/src/main/java/love/distributedrebirth/gdxapp4d/vrsys5/VrSys5Component.java b/gdxapp4d-vrsys5/src/main/java/love/distributedrebirth/gdxapp4d/vrsys5/VrSys5Component.java
index 260aed06..98736eb3 100644
--- a/gdxapp4d-vrsys5/src/main/java/love/distributedrebirth/gdxapp4d/vrsys5/VrSys5Component.java
+++ b/gdxapp4d-vrsys5/src/main/java/love/distributedrebirth/gdxapp4d/vrsys5/VrSys5Component.java
@@ -12,6 +12,7 @@ import love.distributedrebirth.gdxapp4d.vrgem4.service.deskapp.DeskAppLauncher;
 import love.distributedrebirth.gdxapp4d.vrgem4.service.deskapp.DeskAppMenuSection;
 import love.distributedrebirth.gdxapp4d.vrsys5.apps.BaseUnicodePlaneDeskApp;
 import love.distributedrebirth.gdxapp4d.vrsys5.apps.BasicConsoleDeskApp;
+import love.distributedrebirth.gdxapp4d.vrsys5.apps.ImGuiDeskApp;
 
 @Component
 public class VrSys5Component {
@@ -27,10 +28,12 @@ public class VrSys5Component {
 	
 	private final DeskAppLauncher basicLauncher;
 	private final DeskAppLauncher unicodeLauncher;
+	private final DeskAppLauncher imguiLauncher;
 	
 	public VrSys5Component() {
 		basicLauncher = new DeskAppLauncher("Basic Console", () -> new BasicConsoleDeskApp());
 		unicodeLauncher = new DeskAppLauncher("Base Unicode Plane", () -> new BaseUnicodePlaneDeskApp(localeService));
+		imguiLauncher = new DeskAppLauncher("ImGui Demo", () -> new ImGuiDeskApp());
 	}
 	
 	@Activate
@@ -38,12 +41,14 @@ public class VrSys5Component {
 		log.debug(this, SystemGdxLog.ACTIVATE);
 		deskAppService.installDeskApp(DeskAppMenuSection.SYSTEM, basicLauncher);
 		deskAppService.installDeskApp(DeskAppMenuSection.SYSTEM, unicodeLauncher);
+		deskAppService.installDeskApp(DeskAppMenuSection.PROGRAMMING, imguiLauncher);
 	}
 	
 	@Deactivate
 	void close() {
 		log.debug(this, SystemGdxLog.DEACTIVATE);
-		deskAppService.installDeskApp(DeskAppMenuSection.SYSTEM, basicLauncher);
-		deskAppService.installDeskApp(DeskAppMenuSection.SYSTEM, unicodeLauncher);
+		deskAppService.removeDeskApp(DeskAppMenuSection.SYSTEM, basicLauncher);
+		deskAppService.removeDeskApp(DeskAppMenuSection.SYSTEM, unicodeLauncher);
+		deskAppService.removeDeskApp(DeskAppMenuSection.PROGRAMMING, imguiLauncher);
 	}
 }
diff --git a/gdxapp4d-vrsys5/src/main/java/love/distributedrebirth/gdxapp4d/vrsys5/apps/ImGuiDeskApp.java b/gdxapp4d-vrsys5/src/main/java/love/distributedrebirth/gdxapp4d/vrsys5/apps/ImGuiDeskApp.java
new file mode 100644
index 00000000..6ac37856
--- /dev/null
+++ b/gdxapp4d-vrsys5/src/main/java/love/distributedrebirth/gdxapp4d/vrsys5/apps/ImGuiDeskApp.java
@@ -0,0 +1,30 @@
+package love.distributedrebirth.gdxapp4d.vrsys5.apps;
+
+import imgui.ImGui;
+import imgui.type.ImBoolean;
+import love.distributedrebirth.bassboonyd.BãßBȍőnAuthorInfoʸᴰ;
+import love.distributedrebirth.gdxapp4d.vrgem4.service.deskapp.AbstractDeskApp;
+import love.distributedrebirth.gdxapp4d.vrgem4.service.deskapp.DeskAppContourSection;
+import love.distributedrebirth.gdxapp4d.vrgem4.service.deskapp.DeskAppRenderer;
+
+@BãßBȍőnAuthorInfoʸᴰ(name = "willemtsade", copyright = "©Δ∞ 仙上主天")
+public class ImGuiDeskApp extends AbstractDeskApp implements DeskAppRenderer {
+	
+	protected ImBoolean showImGuiDemo = new ImBoolean(false);
+	
+	public void create() {
+		getContours().setTitle("ImGui Demo");
+		getContours().registrateContour(DeskAppContourSection.MAIN, this);
+	}
+
+	@Override
+	public void render() {
+		ImGui.text("Display the ImGui demo window;");
+		if (ImGui.button("Show")) {
+			showImGuiDemo.set(true);
+		}
+		if (showImGuiDemo.get()) {
+			ImGui.showDemoWindow(showImGuiDemo);
+		}
+	}
+}