diff --git a/FiestaOnlineEditor/FiestaOnlineEditor.cpp b/FiestaOnlineEditor/FiestaOnlineEditor.cpp
index b4b39e7..8bb5da7 100644
--- a/FiestaOnlineEditor/FiestaOnlineEditor.cpp
+++ b/FiestaOnlineEditor/FiestaOnlineEditor.cpp
@@ -179,6 +179,23 @@ bool FiestaOnlineEditor::OnUserUpdate(float fElapsedTime){
 		}
 	}
 
+	bool focusErased=false;
+	std::erase_if(windows,[&](Window*w){
+		if(w->IsClosed()){
+			if(w->IsFocusedWindow()){
+				focusErased=true;
+			}
+			w->Cleanup();
+			return true;
+		} else {
+			return false;
+		}
+	});
+
+	if(focusErased&&windows.size()>0){
+		Window::SetFocusedWindow(windows[0]);
+	}
+
 	SetDrawTarget(nullptr);
 	//FOREGROUND DRAWING
 	manager.Draw(sprMenu,{64,64});
diff --git a/FiestaOnlineEditor/FiestaOnlineEditor.vcxproj b/FiestaOnlineEditor/FiestaOnlineEditor.vcxproj
index dd70770..9675825 100644
--- a/FiestaOnlineEditor/FiestaOnlineEditor.vcxproj
+++ b/FiestaOnlineEditor/FiestaOnlineEditor.vcxproj
@@ -76,7 +76,7 @@
       <SDLCheck>true</SDLCheck>
       <PreprocessorDefinitions>WIN32;_DEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <ConformanceMode>true</ConformanceMode>
-      <LanguageStandard>stdcpp17</LanguageStandard>
+      <LanguageStandard>stdcpp20</LanguageStandard>
     </ClCompile>
     <Link>
       <SubSystem>Console</SubSystem>
@@ -91,7 +91,7 @@
       <SDLCheck>true</SDLCheck>
       <PreprocessorDefinitions>WIN32;NDEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <ConformanceMode>true</ConformanceMode>
-      <LanguageStandard>stdcpp17</LanguageStandard>
+      <LanguageStandard>stdcpp20</LanguageStandard>
     </ClCompile>
     <Link>
       <SubSystem>Console</SubSystem>
@@ -106,7 +106,7 @@
       <SDLCheck>true</SDLCheck>
       <PreprocessorDefinitions>_DEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <ConformanceMode>true</ConformanceMode>
-      <LanguageStandard>stdcpp17</LanguageStandard>
+      <LanguageStandard>stdcpp20</LanguageStandard>
     </ClCompile>
     <Link>
       <SubSystem>Console</SubSystem>
@@ -121,7 +121,7 @@
       <SDLCheck>true</SDLCheck>
       <PreprocessorDefinitions>NDEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <ConformanceMode>true</ConformanceMode>
-      <LanguageStandard>stdcpp17</LanguageStandard>
+      <LanguageStandard>stdcpp20</LanguageStandard>
     </ClCompile>
     <Link>
       <SubSystem>Console</SubSystem>
diff --git a/FiestaOnlineEditor/Window.cpp b/FiestaOnlineEditor/Window.cpp
index 3a52f92..37dad3f 100644
--- a/FiestaOnlineEditor/Window.cpp
+++ b/FiestaOnlineEditor/Window.cpp
@@ -17,6 +17,17 @@ void Window::InternalUpdate(FiestaOnlineEditor*pge,float fElapsedTime){
 	if(dragging){
 		pos=pge->GetMousePos()-dragPoint;
 	}
+	if(pge->GetMouseX()>=pos.x+size.x-64&&pge->GetMouseY()<pos.y+headerHeight&&pge->GetMouseY()>=pos.y){
+		if(!canClose){
+			canClose=true;
+			InternalRefresh(pge);
+		}
+	} else {
+		if(canClose){
+			canClose=false;
+			InternalRefresh(pge);
+		}
+	}
 }
 
 void Window::InternalRefresh(FiestaOnlineEditor*pge){
@@ -25,9 +36,17 @@ void Window::InternalRefresh(FiestaOnlineEditor*pge){
 
 	//Window background drawing
 	if(focusedWindow==this){
-		pge->FillRect({0,headerHeight},size,VERY_DARK_BLUE);
+		if(canClose){
+			pge->FillRect({0,headerHeight},size,VERY_DARK_RED);
+		} else {
+			pge->FillRect({0,headerHeight},size,VERY_DARK_BLUE);
+		}
 	} else {
-		pge->FillRect({0,headerHeight},size,VERY_DARK_GREY);
+		if(canClose){
+			pge->FillRect({0,headerHeight},size,DARK_GREY);
+		} else {
+			pge->FillRect({0,headerHeight},size,VERY_DARK_GREY);
+		}
 	}
 
 	//All other drawing functions should go here.
@@ -36,9 +55,17 @@ void Window::InternalRefresh(FiestaOnlineEditor*pge){
 	Refresh(pge);
 	pos.y-=headerHeight;
 	if(focusedWindow==this){
-		pge->FillRect({0,0},{size.x,headerHeight},VERY_DARK_BLUE);
+		if(canClose){
+			pge->FillRect({0,0},{size.x,headerHeight},VERY_DARK_RED);
+		} else {
+			pge->FillRect({0,0},{size.x,headerHeight},VERY_DARK_BLUE);
+		}
 	} else {
-		pge->FillRect({0,0},{size.x,headerHeight},VERY_DARK_GREY);
+		if(canClose){
+			pge->FillRect({0,0},{size.x,headerHeight},DARK_GREY);
+		} else {
+			pge->FillRect({0,0},{size.x,headerHeight},VERY_DARK_GREY);
+		}
 	}
 	pge->DrawString({2,2},windowTitle,CYAN);
 	pge->DrawLine({1,10},{size.x-2,10},DARK_CYAN,0xFFFFFF00);
@@ -79,5 +106,16 @@ void Window::InternalMouseFocus(FiestaOnlineEditor*pge){
 	if(pge->GetMouse(0).bReleased){
 		dragging=false;
 	}
+	if(pge->GetMouse(1).bPressed){
+		closed=true;
+	}
 }
-void Window::MouseFocus(FiestaOnlineEditor*pge){}
\ No newline at end of file
+void Window::MouseFocus(FiestaOnlineEditor*pge){}
+
+bool Window::IsClosed(){
+	return closed;
+}
+
+void Window::SetFocusedWindow(Window*w){
+	focusedWindow=w;	
+}
\ No newline at end of file
diff --git a/FiestaOnlineEditor/Window.h b/FiestaOnlineEditor/Window.h
index 2afbdf8..c2b7ff6 100644
--- a/FiestaOnlineEditor/Window.h
+++ b/FiestaOnlineEditor/Window.h
@@ -10,6 +10,8 @@ private:
 	const int headerHeight=12;
 	bool dragging=false;
 	vf2d dragPoint;
+	bool canClose=false;
+	bool closed=false;
 protected:
 	vi2d size;
 	Sprite*sprWindow;
@@ -23,8 +25,10 @@ public:
 	void InternalRefresh(FiestaOnlineEditor*pge);
 	void Draw(FiestaOnlineEditor*pge);
 	bool IsFocusedWindow();
+	static void SetFocusedWindow(Window*w);
 	void Cleanup();
 	bool IsInBounds(vf2d point);
 	void InternalMouseFocus(FiestaOnlineEditor*pge);
 	virtual void MouseFocus(FiestaOnlineEditor*pge);
+	bool IsClosed();
 };
\ No newline at end of file