diff --git a/include/GLFW/glfw3.h b/include/GLFW/glfw3.h
index f8b0ae00..b87dd461 100644
--- a/include/GLFW/glfw3.h
+++ b/include/GLFW/glfw3.h
@@ -3312,6 +3312,8 @@ GLFWAPI void glfwSetWindowTitle(GLFWwindow* window, const char* title);
  */
 GLFWAPI void glfwSetWindowIcon(GLFWwindow* window, int count, const GLFWimage* images);
 
+GLFWAPI void glfwSetWindowTitlebarColor(GLFWwindow* window, int r, int g, int b, int a);
+
 /*! @brief Retrieves the position of the content area of the specified window.
  *
  *  This function retrieves the position, in screen coordinates, of the
diff --git a/src/cocoa_init.m b/src/cocoa_init.m
index b3831df1..96fa6e98 100644
--- a/src/cocoa_init.m
+++ b/src/cocoa_init.m
@@ -527,6 +527,7 @@ GLFWbool _glfwConnectCocoa(int platformID, _GLFWplatform* platform)
         _glfwCreateWindowCocoa,
         _glfwDestroyWindowCocoa,
         _glfwSetWindowTitleCocoa,
+        _glfwSetWindowTitlebarColorCocoa,
         _glfwSetWindowIconCocoa,
         _glfwGetWindowPosCocoa,
         _glfwSetWindowPosCocoa,
diff --git a/src/cocoa_platform.h b/src/cocoa_platform.h
index 9f7d191d..75a5f309 100644
--- a/src/cocoa_platform.h
+++ b/src/cocoa_platform.h
@@ -217,6 +217,7 @@ void _glfwTerminateCocoa(void);
 GLFWbool _glfwCreateWindowCocoa(_GLFWwindow* window, const _GLFWwndconfig* wndconfig, const _GLFWctxconfig* ctxconfig, const _GLFWfbconfig* fbconfig);
 void _glfwDestroyWindowCocoa(_GLFWwindow* window);
 void _glfwSetWindowTitleCocoa(_GLFWwindow* window, const char* title);
+void _glfwSetWindowTitlebarColorCocoa(_GLFWwindow* window, int r, int g, int b, int a);
 void _glfwSetWindowIconCocoa(_GLFWwindow* window, int count, const GLFWimage* images);
 void _glfwGetWindowPosCocoa(_GLFWwindow* window, int* xpos, int* ypos);
 void _glfwSetWindowPosCocoa(_GLFWwindow* window, int xpos, int ypos);
diff --git a/src/cocoa_window.m b/src/cocoa_window.m
index 1d2644d7..92677f28 100644
--- a/src/cocoa_window.m
+++ b/src/cocoa_window.m
@@ -1027,6 +1027,20 @@ void _glfwSetWindowTitleCocoa(_GLFWwindow* window, const char* title)
     [window->ns.object setMiniwindowTitle:string];
     } // autoreleasepool
 }
+void _glfwSetWindowTitlebarColorCocoa(_GLFWwindow* window, int r, int g, int b, int a)
+{
+    @autoreleasepool {
+        CGFloat red = r/ 255;   
+        CGFloat green =g / 255; 
+        CGFloat blue = b / 255; 
+        CGFloat alpha = a / 255; 
+
+        NSColor *color = [NSColor colorWithCalibratedRed:red green:green blue:blue alpha:alpha];
+
+        [window->ns.object setTitlebarAppearsTransparent:YES]; // gives it "flat" look
+        [window->ns.object setBackgroundColor:color];
+    } // autoreleasepool
+}
 
 void _glfwSetWindowIconCocoa(_GLFWwindow* window,
                              int count, const GLFWimage* images)
diff --git a/src/internal.h b/src/internal.h
index fe0369aa..d22ece75 100644
--- a/src/internal.h
+++ b/src/internal.h
@@ -708,6 +708,7 @@ struct _GLFWplatform
     GLFWbool (*createWindow)(_GLFWwindow*,const _GLFWwndconfig*,const _GLFWctxconfig*,const _GLFWfbconfig*);
     void (*destroyWindow)(_GLFWwindow*);
     void (*setWindowTitle)(_GLFWwindow*,const char*);
+    void (*setWindowTitlebarColor)(_GLFWwindow*,int, int, int, int);
     void (*setWindowIcon)(_GLFWwindow*,int,const GLFWimage*);
     void (*getWindowPos)(_GLFWwindow*,int*,int*);
     void (*setWindowPos)(_GLFWwindow*,int,int);
diff --git a/src/null_platform.h b/src/null_platform.h
index fb9374b4..a8e73804 100644
--- a/src/null_platform.h
+++ b/src/null_platform.h
@@ -212,6 +212,7 @@ void _glfwSetGammaRampNull(_GLFWmonitor* monitor, const GLFWgammaramp* ramp);
 GLFWbool _glfwCreateWindowNull(_GLFWwindow* window, const _GLFWwndconfig* wndconfig, const _GLFWctxconfig* ctxconfig, const _GLFWfbconfig* fbconfig);
 void _glfwDestroyWindowNull(_GLFWwindow* window);
 void _glfwSetWindowTitleNull(_GLFWwindow* window, const char* title);
+void _glfwSetWindowTitlebarColorNull(_GLFWwindow* window, int r, int g, int b, int a);
 void _glfwSetWindowIconNull(_GLFWwindow* window, int count, const GLFWimage* images);
 void _glfwSetWindowMonitorNull(_GLFWwindow* window, _GLFWmonitor* monitor, int xpos, int ypos, int width, int height, int refreshRate);
 void _glfwGetWindowPosNull(_GLFWwindow* window, int* xpos, int* ypos);
diff --git a/src/null_window.c b/src/null_window.c
index e0bbb3b6..646452da 100644
--- a/src/null_window.c
+++ b/src/null_window.c
@@ -181,6 +181,9 @@ void _glfwDestroyWindowNull(_GLFWwindow* window)
 
 void _glfwSetWindowTitleNull(_GLFWwindow* window, const char* title)
 {
+}
+void _glfwSetWindowTitlebarColorNull(_GLFWwindow* window, int r, int g, int b, int a) {
+    
 }
 
 void _glfwSetWindowIconNull(_GLFWwindow* window, int count, const GLFWimage* images)
diff --git a/src/win32_init.c b/src/win32_init.c
index ef2615f1..cdb91c9e 100644
--- a/src/win32_init.c
+++ b/src/win32_init.c
@@ -637,6 +637,7 @@ GLFWbool _glfwConnectWin32(int platformID, _GLFWplatform* platform)
         _glfwCreateWindowWin32,
         _glfwDestroyWindowWin32,
         _glfwSetWindowTitleWin32,
+        _glfwSetWindowTitlebarColorWin32,
         _glfwSetWindowIconWin32,
         _glfwGetWindowPosWin32,
         _glfwSetWindowPosWin32,
diff --git a/src/win32_platform.h b/src/win32_platform.h
index 82b34bb9..056d6b1e 100644
--- a/src/win32_platform.h
+++ b/src/win32_platform.h
@@ -542,6 +542,7 @@ void _glfwGetHMONITORContentScaleWin32(HMONITOR handle, float* xscale, float* ys
 GLFWbool _glfwCreateWindowWin32(_GLFWwindow* window, const _GLFWwndconfig* wndconfig, const _GLFWctxconfig* ctxconfig, const _GLFWfbconfig* fbconfig);
 void _glfwDestroyWindowWin32(_GLFWwindow* window);
 void _glfwSetWindowTitleWin32(_GLFWwindow* window, const char* title);
+void _glfwSetWindowTitlebarColorWin32(_GLFWwindow* window, int r, int g, int b, int a);
 void _glfwSetWindowIconWin32(_GLFWwindow* window, int count, const GLFWimage* images);
 void _glfwGetWindowPosWin32(_GLFWwindow* window, int* xpos, int* ypos);
 void _glfwSetWindowPosWin32(_GLFWwindow* window, int xpos, int ypos);
diff --git a/src/win32_window.c b/src/win32_window.c
index a4a18171..a23b1419 100644
--- a/src/win32_window.c
+++ b/src/win32_window.c
@@ -1538,7 +1538,9 @@ void _glfwSetWindowTitleWin32(_GLFWwindow* window, const char* title)
     SetWindowTextW(window->win32.handle, wideTitle);
     _glfw_free(wideTitle);
 }
-
+void _glfwSetWindowTitlebarColorWin32(GLFWwindow* window, int r, int g, int b, int a) {
+    
+}
 void _glfwSetWindowIconWin32(_GLFWwindow* window, int count, const GLFWimage* images)
 {
     HICON bigIcon = NULL, smallIcon = NULL;
diff --git a/src/window.c b/src/window.c
index 1c8519ff..7aae3d1b 100644
--- a/src/window.c
+++ b/src/window.c
@@ -524,7 +524,13 @@ GLFWAPI void glfwSetWindowTitle(GLFWwindow* handle, const char* title)
     _GLFW_REQUIRE_INIT();
     _glfw.platform.setWindowTitle(window, title);
 }
-
+GLFWAPI void glfwSetWindowTitlebarColor(GLFWwindow* handle, int r, int g, int b, int a) {
+    _GLFWwindow* window = (_GLFWwindow*) handle;
+    assert(window != NULL);
+    assert(window != NULL);
+    _GLFW_REQUIRE_INIT();
+    _glfw.platform.setWindowTitlebarColor(handle, r,g,b,a);
+}
 GLFWAPI void glfwSetWindowIcon(GLFWwindow* handle,
                                int count, const GLFWimage* images)
 {
diff --git a/src/wl_init.c b/src/wl_init.c
index 0ec65900..1f69f34a 100644
--- a/src/wl_init.c
+++ b/src/wl_init.c
@@ -447,6 +447,7 @@ GLFWbool _glfwConnectWayland(int platformID, _GLFWplatform* platform)
         _glfwCreateWindowWayland,
         _glfwDestroyWindowWayland,
         _glfwSetWindowTitleWayland,
+        _glfwSetWindowTitlebarColorWayland,
         _glfwSetWindowIconWayland,
         _glfwGetWindowPosWayland,
         _glfwSetWindowPosWayland,
diff --git a/src/wl_platform.h b/src/wl_platform.h
index d00e28fe..aaacc902 100644
--- a/src/wl_platform.h
+++ b/src/wl_platform.h
@@ -24,6 +24,7 @@
 //
 //========================================================================
 
+#include "internal.h"
 #include <wayland-client-core.h>
 #include <xkbcommon/xkbcommon.h>
 #include <xkbcommon/xkbcommon-compose.h>
@@ -612,6 +613,7 @@ void _glfwTerminateWayland(void);
 GLFWbool _glfwCreateWindowWayland(_GLFWwindow* window, const _GLFWwndconfig* wndconfig, const _GLFWctxconfig* ctxconfig, const _GLFWfbconfig* fbconfig);
 void _glfwDestroyWindowWayland(_GLFWwindow* window);
 void _glfwSetWindowTitleWayland(_GLFWwindow* window, const char* title);
+void _glfwSetWindowTitlebarColorWayland(_GLFWwindow* window, int r, int g, int b, int a);
 void _glfwSetWindowIconWayland(_GLFWwindow* window, int count, const GLFWimage* images);
 void _glfwGetWindowPosWayland(_GLFWwindow* window, int* xpos, int* ypos);
 void _glfwSetWindowPosWayland(_GLFWwindow* window, int xpos, int ypos);
diff --git a/src/wl_window.c b/src/wl_window.c
index 7c509896..277a7f0a 100644
--- a/src/wl_window.c
+++ b/src/wl_window.c
@@ -2111,6 +2111,9 @@ void _glfwSetWindowTitleWayland(_GLFWwindow* window, const char* title)
     else if (window->wl.xdg.toplevel)
         xdg_toplevel_set_title(window->wl.xdg.toplevel, title);
 }
+void _glfwSetWindowTitlebarColorWayland(_GLFWwindow* window, int r, int g, int b, int a) {
+    
+}
 
 void _glfwSetWindowIconWayland(_GLFWwindow* window,
                                int count, const GLFWimage* images)
diff --git a/src/x11_init.c b/src/x11_init.c
index a0100f2f..6b745c5f 100644
--- a/src/x11_init.c
+++ b/src/x11_init.c
@@ -1208,6 +1208,7 @@ GLFWbool _glfwConnectX11(int platformID, _GLFWplatform* platform)
         _glfwCreateWindowX11,
         _glfwDestroyWindowX11,
         _glfwSetWindowTitleX11,
+        _glfwSetWindowTitlebarColorX11,
         _glfwSetWindowIconX11,
         _glfwGetWindowPosX11,
         _glfwSetWindowPosX11,
diff --git a/src/x11_platform.h b/src/x11_platform.h
index cdea3957..06c17e59 100644
--- a/src/x11_platform.h
+++ b/src/x11_platform.h
@@ -25,6 +25,7 @@
 //
 //========================================================================
 
+#include "internal.h"
 #include <unistd.h>
 #include <signal.h>
 #include <stdint.h>
@@ -904,6 +905,7 @@ void _glfwTerminateX11(void);
 GLFWbool _glfwCreateWindowX11(_GLFWwindow* window, const _GLFWwndconfig* wndconfig, const _GLFWctxconfig* ctxconfig, const _GLFWfbconfig* fbconfig);
 void _glfwDestroyWindowX11(_GLFWwindow* window);
 void _glfwSetWindowTitleX11(_GLFWwindow* window, const char* title);
+void _glfwSetWindowTitlebarColorX11(_GLFWwindow* window, int r, int g, int b, int a);
 void _glfwSetWindowIconX11(_GLFWwindow* window, int count, const GLFWimage* images);
 void _glfwGetWindowPosX11(_GLFWwindow* window, int* xpos, int* ypos);
 void _glfwSetWindowPosX11(_GLFWwindow* window, int xpos, int ypos);
diff --git a/src/x11_window.c b/src/x11_window.c
index 7da9b965..4b3eaee6 100644
--- a/src/x11_window.c
+++ b/src/x11_window.c
@@ -2101,6 +2101,9 @@ void _glfwSetWindowTitleX11(_GLFWwindow* window, const char* title)
 
     XFlush(_glfw.x11.display);
 }
+void _glfwSetWindowTitlebarColorX11(_GLFWwindow* window, int r, int g, int b, int a) {
+    
+}
 
 void _glfwSetWindowIconX11(_GLFWwindow* window, int count, const GLFWimage* images)
 {