diff --git a/include/sharpsoft/windowing.hpp b/include/sharpsoft/windowing.hpp
index 28e52ec..e294e95 100644
--- a/include/sharpsoft/windowing.hpp
+++ b/include/sharpsoft/windowing.hpp
@@ -9,8 +9,9 @@ namespace sharp
 {
     enum window_flags : uint32_t
     {
-        CONTINUOUS_PAINT = 0x01,
-        CONTINUOUS_TICK  = 0x02,
+        CONTINUOUS_PAINT   = 0x01,
+        CONTINUOUS_TICK    = 0x02,
+        HEADER_UPDATE      = 0x04,
     };
     enum window_internal_flags : uint32_t
     {
diff --git a/src/main.cpp b/src/main.cpp
index 4ac815f..dfacbd4 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -12,8 +12,11 @@ protected:
 		static int frame = 0;
 		frame++;
 
-		sharp::color back_col(0, frame % 256, 0);
-		style().background_color = back_col;
+		style() = 
+		{
+			sharp::color(frame % 256, 0, 0),
+			sharp::color(0, 0, frame % 256)
+		};
 	}
 	void tick() override
 	{
@@ -23,7 +26,9 @@ protected:
 public:
     test_window() : window_base("Testing", sharp::int2(10, 10), sharp::int2(150, 100))
     {
+		set_flag(sharp::CONTINUOUS_PAINT, true);
 		set_flag(sharp::CONTINUOUS_TICK, false);
+		set_flag(sharp::HEADER_UPDATE, true);
     }
 };
 
diff --git a/src/sharpsoft/global_manager.cpp b/src/sharpsoft/global_manager.cpp
index 001ab00..14174ac 100644
--- a/src/sharpsoft/global_manager.cpp
+++ b/src/sharpsoft/global_manager.cpp
@@ -92,7 +92,10 @@ void sharp::internal::render_iter()
         }
 
         // Now render anything that is invalidated.
-        if (!HAS_INTERNAL_FLAG(win, WINDOW_HEADER_VALIDATED))
+        // If the header is set to sync with the content validation, render it
+        // regardless of if it would otherwise.
+        if (!HAS_INTERNAL_FLAG(win, WINDOW_HEADER_VALIDATED) ||
+            (!HAS_INTERNAL_FLAG(win, WINDOW_CONTENT_VALIDATED) && HAS_WINDOW_FLAG(win, HEADER_UPDATE)))
         {
             win->paint_header();
             ON_INTERNAL_FLAG(win, WINDOW_HEADER_VALIDATED);