diff --git a/examples/component/button.cpp b/examples/component/button.cpp
index 00314a98..d38f4c17 100644
--- a/examples/component/button.cpp
+++ b/examples/component/button.cpp
@@ -1,7 +1,3 @@
-// Copyright 2020 Arthur Sonzogni. All rights reserved.
-// Use of this source code is governed by the MIT license that can be found in
-// the LICENSE file.
-
 #include "ftxui/component/button.hpp"
 
 #include "ftxui/component/component.hpp"
@@ -46,3 +42,7 @@ int main(int argc, const char* argv[]) {
   screen.Loop(&component);
   return 0;
 }
+
+// Copyright 2020 Arthur Sonzogni. All rights reserved.
+// Use of this source code is governed by the MIT license that can be found in
+// the LICENSE file.
diff --git a/examples/component/checkbox.cpp b/examples/component/checkbox.cpp
index c63de283..a0cb0b86 100644
--- a/examples/component/checkbox.cpp
+++ b/examples/component/checkbox.cpp
@@ -1,7 +1,3 @@
-// Copyright 2020 Arthur Sonzogni. All rights reserved.
-// Use of this source code is governed by the MIT license that can be found in
-// the LICENSE file.
-
 #include "ftxui/component/checkbox.hpp"
 
 #include "ftxui/component/component.hpp"
@@ -36,3 +32,7 @@ int main(int argc, const char* argv[]) {
   screen.Loop(&component);
   return 0;
 }
+
+// Copyright 2020 Arthur Sonzogni. All rights reserved.
+// Use of this source code is governed by the MIT license that can be found in
+// the LICENSE file.
diff --git a/examples/component/checkbox_in_frame.cpp b/examples/component/checkbox_in_frame.cpp
index aa66be72..608f2d2f 100644
--- a/examples/component/checkbox_in_frame.cpp
+++ b/examples/component/checkbox_in_frame.cpp
@@ -1,7 +1,3 @@
-// Copyright 2020 Arthur Sonzogni. All rights reserved.
-// Use of this source code is governed by the MIT license that can be found in
-// the LICENSE file.
-
 #include "ftxui/component/checkbox.hpp"
 #include "ftxui/component/container.hpp"
 #include "ftxui/component/input.hpp"
@@ -47,3 +43,7 @@ int main(int argc, const char* argv[]) {
 
   return 0;
 }
+
+// Copyright 2020 Arthur Sonzogni. All rights reserved.
+// Use of this source code is governed by the MIT license that can be found in
+// the LICENSE file.
diff --git a/examples/component/gallery.cpp b/examples/component/gallery.cpp
index a7d0264b..54f4d6cc 100644
--- a/examples/component/gallery.cpp
+++ b/examples/component/gallery.cpp
@@ -1,9 +1,5 @@
-// Copyright 2020 Arthur Sonzogni. All rights reserved.
-// Use of this source code is governed by the MIT license that can be found in
-// the LICENSE file.
-
-#include "ftxui/component/checkbox.hpp"
 #include "ftxui/component/button.hpp"
+#include "ftxui/component/checkbox.hpp"
 #include "ftxui/component/container.hpp"
 #include "ftxui/component/input.hpp"
 #include "ftxui/component/menu.hpp"
@@ -100,3 +96,7 @@ int main(int argc, const char* argv[]) {
 
   return 0;
 }
+
+// Copyright 2020 Arthur Sonzogni. All rights reserved.
+// Use of this source code is governed by the MIT license that can be found in
+// the LICENSE file.
diff --git a/examples/component/homescreen.cpp b/examples/component/homescreen.cpp
index 33c129ca..ac8fc83b 100644
--- a/examples/component/homescreen.cpp
+++ b/examples/component/homescreen.cpp
@@ -1,7 +1,3 @@
-// Copyright 2020 Arthur Sonzogni. All rights reserved.
-// Use of this source code is governed by the MIT license that can be found in
-// the LICENSE file.
-
 #include <cmath>
 #include <thread>
 
@@ -385,3 +381,7 @@ int main(int argc, const char* argv[]) {
 
   return 0;
 }
+
+// Copyright 2020 Arthur Sonzogni. All rights reserved.
+// Use of this source code is governed by the MIT license that can be found in
+// the LICENSE file.
diff --git a/examples/component/input.cpp b/examples/component/input.cpp
index a28afd7b..2f2eb51e 100644
--- a/examples/component/input.cpp
+++ b/examples/component/input.cpp
@@ -1,7 +1,3 @@
-// Copyright 2020 Arthur Sonzogni. All rights reserved.
-// Use of this source code is governed by the MIT license that can be found in
-// the LICENSE file.
-
 #include "ftxui/component/input.hpp"
 
 #include <iostream>
@@ -48,3 +44,7 @@ int main(int argc, const char* argv[]) {
   component.on_enter = screen.ExitLoopClosure();
   screen.Loop(&component);
 }
+
+// Copyright 2020 Arthur Sonzogni. All rights reserved.
+// Use of this source code is governed by the MIT license that can be found in
+// the LICENSE file.
diff --git a/examples/component/menu.cpp b/examples/component/menu.cpp
index db8b96f4..1fd33e3e 100644
--- a/examples/component/menu.cpp
+++ b/examples/component/menu.cpp
@@ -1,7 +1,3 @@
-// Copyright 2020 Arthur Sonzogni. All rights reserved.
-// Use of this source code is governed by the MIT license that can be found in
-// the LICENSE file.
-
 #include "ftxui/component/menu.hpp"
 
 #include <chrono>
@@ -23,3 +19,7 @@ int main(int argc, const char* argv[]) {
 
   std::cout << "Selected element = " << menu.selected << std::endl;
 }
+
+// Copyright 2020 Arthur Sonzogni. All rights reserved.
+// Use of this source code is governed by the MIT license that can be found in
+// the LICENSE file.
diff --git a/examples/component/menu2.cpp b/examples/component/menu2.cpp
index 82f4a68b..dd422f6f 100644
--- a/examples/component/menu2.cpp
+++ b/examples/component/menu2.cpp
@@ -1,7 +1,3 @@
-// Copyright 2020 Arthur Sonzogni. All rights reserved.
-// Use of this source code is governed by the MIT license that can be found in
-// the LICENSE file.
-
 #include <chrono>
 #include <iostream>
 #include <thread>
@@ -81,3 +77,7 @@ int main(int argc, const char* argv[]) {
   component.on_enter = screen.ExitLoopClosure();
   screen.Loop(&component);
 }
+
+// Copyright 2020 Arthur Sonzogni. All rights reserved.
+// Use of this source code is governed by the MIT license that can be found in
+// the LICENSE file.
diff --git a/examples/component/menu_style.cpp b/examples/component/menu_style.cpp
index ba72bf22..839d2630 100644
--- a/examples/component/menu_style.cpp
+++ b/examples/component/menu_style.cpp
@@ -1,7 +1,3 @@
-// Copyright 2020 Arthur Sonzogni. All rights reserved.
-// Use of this source code is governed by the MIT license that can be found in
-// the LICENSE file.
-
 #include <iostream>
 #include <thread>
 
@@ -75,3 +71,7 @@ int main(int argc, const char* argv[]) {
   component.on_enter = screen.ExitLoopClosure();
   screen.Loop(&component);
 }
+
+// Copyright 2020 Arthur Sonzogni. All rights reserved.
+// Use of this source code is governed by the MIT license that can be found in
+// the LICENSE file.
diff --git a/examples/component/modal_dialog.cpp b/examples/component/modal_dialog.cpp
index abdfff22..520fd78f 100644
--- a/examples/component/modal_dialog.cpp
+++ b/examples/component/modal_dialog.cpp
@@ -1,7 +1,3 @@
-// Copyright 2020 Arthur Sonzogni. All rights reserved.
-// Use of this source code is governed by the MIT license that can be found in
-// the LICENSE file.
-
 #include "ftxui/component/button.hpp"
 #include "ftxui/component/component.hpp"
 #include "ftxui/component/container.hpp"
@@ -24,7 +20,7 @@ class Content : public Component {
   }
 
   Element Render() final {
-    auto button_elements= hbox({
+    auto button_elements = hbox({
         button_rate_ftxui.Render(),
         filler(),
         button_quit_.Render(),
@@ -126,3 +122,7 @@ int main(int argc, const char* argv[]) {
   screen.Loop(&my_component);
   return 0;
 }
+
+// Copyright 2020 Arthur Sonzogni. All rights reserved.
+// Use of this source code is governed by the MIT license that can be found in
+// the LICENSE file.
diff --git a/examples/component/radiobox.cpp b/examples/component/radiobox.cpp
index 46e106d8..62d0f1ef 100644
--- a/examples/component/radiobox.cpp
+++ b/examples/component/radiobox.cpp
@@ -1,7 +1,3 @@
-// Copyright 2020 Arthur Sonzogni. All rights reserved.
-// Use of this source code is governed by the MIT license that can be found in
-// the LICENSE file.
-
 #include "ftxui/component/radiobox.hpp"
 
 #include "ftxui/component/component.hpp"
@@ -22,3 +18,7 @@ int main(int argc, const char* argv[]) {
   screen.Loop(&radiobox);
   return 0;
 }
+
+// Copyright 2020 Arthur Sonzogni. All rights reserved.
+// Use of this source code is governed by the MIT license that can be found in
+// the LICENSE file.
diff --git a/examples/component/radiobox_in_frame.cpp b/examples/component/radiobox_in_frame.cpp
index ae40ac36..0137425f 100644
--- a/examples/component/radiobox_in_frame.cpp
+++ b/examples/component/radiobox_in_frame.cpp
@@ -1,7 +1,3 @@
-// Copyright 2020 Arthur Sonzogni. All rights reserved.
-// Use of this source code is governed by the MIT license that can be found in
-// the LICENSE file.
-
 #include "ftxui/component/checkbox.hpp"
 #include "ftxui/component/container.hpp"
 #include "ftxui/component/input.hpp"
@@ -36,3 +32,7 @@ int main(int argc, const char* argv[]) {
 
   return 0;
 }
+
+// Copyright 2020 Arthur Sonzogni. All rights reserved.
+// Use of this source code is governed by the MIT license that can be found in
+// the LICENSE file.
diff --git a/examples/component/tab_horizontal.cpp b/examples/component/tab_horizontal.cpp
index 77e689f8..a475e4bc 100644
--- a/examples/component/tab_horizontal.cpp
+++ b/examples/component/tab_horizontal.cpp
@@ -1,7 +1,3 @@
-// Copyright 2020 Arthur Sonzogni. All rights reserved.
-// Use of this source code is governed by the MIT license that can be found in
-// the LICENSE file.
-
 #include <iostream>
 #include <thread>
 
@@ -68,3 +64,7 @@ int main(int argc, const char* argv[]) {
   component.on_enter = screen.ExitLoopClosure();
   screen.Loop(&component);
 }
+
+// Copyright 2020 Arthur Sonzogni. All rights reserved.
+// Use of this source code is governed by the MIT license that can be found in
+// the LICENSE file.
diff --git a/examples/component/tab_vertical.cpp b/examples/component/tab_vertical.cpp
index c8ad6898..b32a8d9b 100644
--- a/examples/component/tab_vertical.cpp
+++ b/examples/component/tab_vertical.cpp
@@ -1,7 +1,3 @@
-// Copyright 2020 Arthur Sonzogni. All rights reserved.
-// Use of this source code is governed by the MIT license that can be found in
-// the LICENSE file.
-
 #include <iostream>
 
 #include "ftxui/component/container.hpp"
@@ -62,3 +58,7 @@ int main(int argc, const char* argv[]) {
   component.on_enter = screen.ExitLoopClosure();
   screen.Loop(&component);
 }
+
+// Copyright 2020 Arthur Sonzogni. All rights reserved.
+// Use of this source code is governed by the MIT license that can be found in
+// the LICENSE file.
diff --git a/examples/component/toggle.cpp b/examples/component/toggle.cpp
index 38fe4342..ef2cd3ab 100644
--- a/examples/component/toggle.cpp
+++ b/examples/component/toggle.cpp
@@ -1,7 +1,3 @@
-// Copyright 2020 Arthur Sonzogni. All rights reserved.
-// Use of this source code is governed by the MIT license that can be found in
-// the LICENSE file.
-
 #include "ftxui/component/toggle.hpp"
 
 #include <chrono>
@@ -64,3 +60,7 @@ int main(int argc, const char* argv[]) {
   component.on_enter = screen.ExitLoopClosure();
   screen.Loop(&component);
 }
+
+// Copyright 2020 Arthur Sonzogni. All rights reserved.
+// Use of this source code is governed by the MIT license that can be found in
+// the LICENSE file.
diff --git a/examples/dom/border.cpp b/examples/dom/border.cpp
index 0cceddbb..7a49f3e6 100644
--- a/examples/dom/border.cpp
+++ b/examples/dom/border.cpp
@@ -1,7 +1,3 @@
-// Copyright 2020 Arthur Sonzogni. All rights reserved.
-// Use of this source code is governed by the MIT license that can be found in
-// the LICENSE file.
-
 #include <chrono>
 #include <ftxui/dom/elements.hpp>
 #include <ftxui/screen/screen.hpp>
@@ -34,3 +30,7 @@ int main(int argc, const char* argv[]) {
   Render(screen, document);
   std::cout << screen.ToString() << std::endl;
 }
+
+// Copyright 2020 Arthur Sonzogni. All rights reserved.
+// Use of this source code is governed by the MIT license that can be found in
+// the LICENSE file.
diff --git a/examples/dom/color_gallery.cpp b/examples/dom/color_gallery.cpp
index a5e745cf..a9c33b38 100644
--- a/examples/dom/color_gallery.cpp
+++ b/examples/dom/color_gallery.cpp
@@ -1,7 +1,3 @@
-// Copyright 2020 Arthur Sonzogni. All rights reserved.
-// Use of this source code is governed by the MIT license that can be found in
-// the LICENSE file.
-
 #include <ftxui/dom/elements.hpp>
 #include <ftxui/screen/screen.hpp>
 #include <ftxui/screen/terminal.hpp>
@@ -107,3 +103,7 @@ int main(int argc, const char* argv[]) {
 
   return 0;
 }
+
+// Copyright 2020 Arthur Sonzogni. All rights reserved.
+// Use of this source code is governed by the MIT license that can be found in
+// the LICENSE file.
diff --git a/examples/dom/color_info_palette256.cpp b/examples/dom/color_info_palette256.cpp
index 74ed58b9..13528774 100644
--- a/examples/dom/color_info_palette256.cpp
+++ b/examples/dom/color_info_palette256.cpp
@@ -1,14 +1,10 @@
-// Copyright 2020 Arthur Sonzogni. All rights reserved.
-// Use of this source code is governed by the MIT license that can be found in
-// the LICENSE file.
-
-#include <ftxui/dom/elements.hpp>
-#include <ftxui/screen/screen.hpp>
 #include <algorithm>
-#include <ftxui/screen/terminal.hpp>
+#include <ftxui/dom/elements.hpp>
 #include <ftxui/screen/color_info.hpp>
-#include "ftxui/screen/string.hpp"
+#include <ftxui/screen/screen.hpp>
+#include <ftxui/screen/terminal.hpp>
 #include <iostream>
+#include "ftxui/screen/string.hpp"
 
 int main(int argc, const char* argv[]) {
   using namespace ftxui;
@@ -55,29 +51,32 @@ int main(int argc, const char* argv[]) {
           best_index = j;
         }
       }
-      std::swap(column[i+1], column[best_index]);
+      std::swap(column[i + 1], column[best_index]);
     }
   }
 
   // Draw every columns
   Elements columns_elements;
-  for(auto& column : info_columns) {
+  for (auto& column : info_columns) {
     Elements column_elements;
-    for(auto& it : column) {
+    for (auto& it : column) {
       column_elements.push_back(hbox({
-        text(L"     ") | bgcolor(Color(Color::Palette256(it.index))),
-        text(to_wstring(std::string(it.name))),
+          text(L"     ") | bgcolor(Color(Color::Palette256(it.index))),
+          text(to_wstring(std::string(it.name))),
       }));
     }
     columns_elements.push_back(vbox(std::move(column_elements)));
   }
   auto document = hbox(std::move(columns_elements));
 
-  auto screen =
-      Screen::Create(Dimension::Full(), Dimension::Fit(document));
+  auto screen = Screen::Create(Dimension::Full(), Dimension::Fit(document));
   Render(screen, document);
 
   std::cout << screen.ToString();
 
   return 0;
 }
+
+// Copyright 2020 Arthur Sonzogni. All rights reserved.
+// Use of this source code is governed by the MIT license that can be found in
+// the LICENSE file.
diff --git a/examples/dom/color_truecolor_HSV.cpp b/examples/dom/color_truecolor_HSV.cpp
index 5de665e2..ba6ae7a2 100644
--- a/examples/dom/color_truecolor_HSV.cpp
+++ b/examples/dom/color_truecolor_HSV.cpp
@@ -1,7 +1,3 @@
-// Copyright 2020 Arthur Sonzogni. All rights reserved.
-// Use of this source code is governed by the MIT license that can be found in
-// the LICENSE file.
-
 #include <ftxui/dom/elements.hpp>
 #include <ftxui/screen/screen.hpp>
 #include <ftxui/screen/terminal.hpp>
@@ -30,3 +26,7 @@ int main(int argc, const char* argv[]) {
 
   return 0;
 }
+
+// Copyright 2020 Arthur Sonzogni. All rights reserved.
+// Use of this source code is governed by the MIT license that can be found in
+// the LICENSE file.
diff --git a/examples/dom/color_truecolor_RGB.cpp b/examples/dom/color_truecolor_RGB.cpp
index 2bd87d95..ed1495ba 100644
--- a/examples/dom/color_truecolor_RGB.cpp
+++ b/examples/dom/color_truecolor_RGB.cpp
@@ -1,7 +1,3 @@
-// Copyright 2020 Arthur Sonzogni. All rights reserved.
-// Use of this source code is governed by the MIT license that can be found in
-// the LICENSE file.
-
 #include <cmath>
 #include <ftxui/dom/elements.hpp>
 #include <ftxui/screen/screen.hpp>
@@ -53,3 +49,7 @@ int main(int argc, const char* argv[]) {
 
   return 0;
 }
+
+// Copyright 2020 Arthur Sonzogni. All rights reserved.
+// Use of this source code is governed by the MIT license that can be found in
+// the LICENSE file.
diff --git a/examples/dom/dbox.cpp b/examples/dom/dbox.cpp
index 7c59328e..67561ef1 100644
--- a/examples/dom/dbox.cpp
+++ b/examples/dom/dbox.cpp
@@ -1,7 +1,3 @@
-// Copyright 2020 Arthur Sonzogni. All rights reserved.
-// Use of this source code is governed by the MIT license that can be found in
-// the LICENSE file.
-
 #include <ftxui/dom/elements.hpp>
 #include <ftxui/screen/screen.hpp>
 #include <iostream>
@@ -25,3 +21,7 @@ int main(int argc, const char* argv[]) {
 
   return 0;
 }
+
+// Copyright 2020 Arthur Sonzogni. All rights reserved.
+// Use of this source code is governed by the MIT license that can be found in
+// the LICENSE file.
diff --git a/examples/dom/gauge.cpp b/examples/dom/gauge.cpp
index 54068e3a..2d7ecd34 100644
--- a/examples/dom/gauge.cpp
+++ b/examples/dom/gauge.cpp
@@ -1,7 +1,3 @@
-// Copyright 2020 Arthur Sonzogni. All rights reserved.
-// Use of this source code is governed by the MIT license that can be found in
-// the LICENSE file.
-
 #include <chrono>
 #include <ftxui/dom/elements.hpp>
 #include <ftxui/screen/screen.hpp>
@@ -30,3 +26,7 @@ int main(int argc, const char* argv[]) {
   }
   std::cout << std::endl;
 }
+
+// Copyright 2020 Arthur Sonzogni. All rights reserved.
+// Use of this source code is governed by the MIT license that can be found in
+// the LICENSE file.
diff --git a/examples/dom/graph.cpp b/examples/dom/graph.cpp
index aa6b049a..dbf7f1ef 100644
--- a/examples/dom/graph.cpp
+++ b/examples/dom/graph.cpp
@@ -1,7 +1,3 @@
-// Copyright 2020 Arthur Sonzogni. All rights reserved.
-// Use of this source code is governed by the MIT license that can be found in
-// the LICENSE file.
-
 #include <chrono>
 #include <cmath>
 #include <ftxui/dom/elements.hpp>
@@ -74,3 +70,7 @@ int main(int argc, const char* argv[]) {
 
   return 0;
 }
+
+// Copyright 2020 Arthur Sonzogni. All rights reserved.
+// Use of this source code is governed by the MIT license that can be found in
+// the LICENSE file.
diff --git a/examples/dom/hflow.cpp b/examples/dom/hflow.cpp
index 0f796a0c..ef6beb22 100644
--- a/examples/dom/hflow.cpp
+++ b/examples/dom/hflow.cpp
@@ -1,7 +1,3 @@
-// Copyright 2020 Arthur Sonzogni. All rights reserved.
-// Use of this source code is governed by the MIT license that can be found in
-// the LICENSE file.
-
 #include <ftxui/dom/elements.hpp>
 #include <ftxui/screen/screen.hpp>
 #include <ftxui/screen/string.hpp>
@@ -47,3 +43,7 @@ int main(int argc, const char* argv[]) {
 
   return 0;
 }
+
+// Copyright 2020 Arthur Sonzogni. All rights reserved.
+// Use of this source code is governed by the MIT license that can be found in
+// the LICENSE file.
diff --git a/examples/dom/html_like.cpp b/examples/dom/html_like.cpp
index b00fcad6..6485cf11 100644
--- a/examples/dom/html_like.cpp
+++ b/examples/dom/html_like.cpp
@@ -1,7 +1,3 @@
-// Copyright 2020 Arthur Sonzogni. All rights reserved.
-// Use of this source code is governed by the MIT license that can be found in
-// the LICENSE file.
-
 #include <chrono>
 #include <ftxui/dom/elements.hpp>
 #include <ftxui/screen/screen.hpp>
@@ -54,3 +50,7 @@ int main(int argc, const char* argv[]) {
 
   return 0;
 }
+
+// Copyright 2020 Arthur Sonzogni. All rights reserved.
+// Use of this source code is governed by the MIT license that can be found in
+// the LICENSE file.
diff --git a/examples/dom/package_manager.cpp b/examples/dom/package_manager.cpp
index 99c129fa..3875945b 100644
--- a/examples/dom/package_manager.cpp
+++ b/examples/dom/package_manager.cpp
@@ -1,7 +1,3 @@
-// Copyright 2020 Arthur Sonzogni. All rights reserved.
-// Use of this source code is governed by the MIT license that can be found in
-// the LICENSE file.
-
 #include <chrono>
 #include <ftxui/dom/elements.hpp>
 #include <ftxui/screen/screen.hpp>
@@ -143,3 +139,7 @@ int main(int argc, const char* argv[]) {
   }
   std::cout << std::endl;
 }
+
+// Copyright 2020 Arthur Sonzogni. All rights reserved.
+// Use of this source code is governed by the MIT license that can be found in
+// the LICENSE file.
diff --git a/examples/dom/paragraph.cpp b/examples/dom/paragraph.cpp
index fab3826f..7ed3d149 100644
--- a/examples/dom/paragraph.cpp
+++ b/examples/dom/paragraph.cpp
@@ -1,7 +1,3 @@
-// Copyright 2020 Arthur Sonzogni. All rights reserved.
-// Use of this source code is governed by the MIT license that can be found in
-// the LICENSE file.
-
 #include <ftxui/dom/elements.hpp>
 #include <ftxui/screen/screen.hpp>
 #include <ftxui/screen/string.hpp>
@@ -34,3 +30,7 @@ int main(int argc, const char* argv[]) {
 
   return 0;
 }
+
+// Copyright 2020 Arthur Sonzogni. All rights reserved.
+// Use of this source code is governed by the MIT license that can be found in
+// the LICENSE file.
diff --git a/examples/dom/separator.cpp b/examples/dom/separator.cpp
index 08337610..e5758686 100644
--- a/examples/dom/separator.cpp
+++ b/examples/dom/separator.cpp
@@ -1,7 +1,3 @@
-// Copyright 2020 Arthur Sonzogni. All rights reserved.
-// Use of this source code is governed by the MIT license that can be found in
-// the LICENSE file.
-
 #include <ftxui/dom/elements.hpp>
 #include <ftxui/screen/screen.hpp>
 #include <iostream>
@@ -27,3 +23,7 @@ int main(int argc, const char* argv[]) {
 
   return 0;
 }
+
+// Copyright 2020 Arthur Sonzogni. All rights reserved.
+// Use of this source code is governed by the MIT license that can be found in
+// the LICENSE file.
diff --git a/examples/dom/size.cpp b/examples/dom/size.cpp
index 4c05745c..392c62e2 100644
--- a/examples/dom/size.cpp
+++ b/examples/dom/size.cpp
@@ -1,7 +1,3 @@
-// Copyright 2020 Arthur Sonzogni. All rights reserved.
-// Use of this source code is governed by the MIT license that can be found in
-// the LICENSE file.
-
 #include <ftxui/dom/elements.hpp>
 #include <ftxui/screen/screen.hpp>
 #include <ftxui/screen/string.hpp>
@@ -26,3 +22,7 @@ int main(int argc, const char* argv[]) {
 
   return 0;
 }
+
+// Copyright 2020 Arthur Sonzogni. All rights reserved.
+// Use of this source code is governed by the MIT license that can be found in
+// the LICENSE file.
diff --git a/examples/dom/spinner.cpp b/examples/dom/spinner.cpp
index 62ac4105..52cfe871 100644
--- a/examples/dom/spinner.cpp
+++ b/examples/dom/spinner.cpp
@@ -1,7 +1,3 @@
-// Copyright 2020 Arthur Sonzogni. All rights reserved.
-// Use of this source code is governed by the MIT license that can be found in
-// the LICENSE file.
-
 #include <chrono>
 #include <ftxui/dom/elements.hpp>
 #include <ftxui/screen/screen.hpp>
@@ -39,3 +35,7 @@ int main(int argc, const char* argv[]) {
   }
   std::cout << std::endl;
 }
+
+// Copyright 2020 Arthur Sonzogni. All rights reserved.
+// Use of this source code is governed by the MIT license that can be found in
+// the LICENSE file.
diff --git a/examples/dom/style_blink.cpp b/examples/dom/style_blink.cpp
index 4900256a..0445add6 100644
--- a/examples/dom/style_blink.cpp
+++ b/examples/dom/style_blink.cpp
@@ -1,7 +1,3 @@
-// Copyright 2020 Arthur Sonzogni. All rights reserved.
-// Use of this source code is governed by the MIT license that can be found in
-// the LICENSE file.
-
 #include <ftxui/dom/elements.hpp>
 #include <ftxui/screen/screen.hpp>
 #include <iostream>
@@ -21,3 +17,7 @@ int main(int argc, const char* argv[]) {
 
   return 0;
 }
+
+// Copyright 2020 Arthur Sonzogni. All rights reserved.
+// Use of this source code is governed by the MIT license that can be found in
+// the LICENSE file.
diff --git a/examples/dom/style_bold.cpp b/examples/dom/style_bold.cpp
index 4c142ee1..89cb6410 100644
--- a/examples/dom/style_bold.cpp
+++ b/examples/dom/style_bold.cpp
@@ -1,7 +1,3 @@
-// Copyright 2020 Arthur Sonzogni. All rights reserved.
-// Use of this source code is governed by the MIT license that can be found in
-// the LICENSE file.
-
 #include <ftxui/dom/elements.hpp>
 #include <ftxui/screen/screen.hpp>
 #include <iostream>
@@ -21,3 +17,7 @@ int main(int argc, const char* argv[]) {
 
   return 0;
 }
+
+// Copyright 2020 Arthur Sonzogni. All rights reserved.
+// Use of this source code is governed by the MIT license that can be found in
+// the LICENSE file.
diff --git a/examples/dom/style_color.cpp b/examples/dom/style_color.cpp
index 92d0d46b..5c4ec509 100644
--- a/examples/dom/style_color.cpp
+++ b/examples/dom/style_color.cpp
@@ -1,7 +1,3 @@
-// Copyright 2020 Arthur Sonzogni. All rights reserved.
-// Use of this source code is governed by the MIT license that can be found in
-// the LICENSE file.
-
 #include <ftxui/dom/elements.hpp>
 #include <ftxui/screen/screen.hpp>
 #include <iostream>
@@ -60,3 +56,7 @@ int main(int argc, const char* argv[]) {
 
   return 0;
 }
+
+// Copyright 2020 Arthur Sonzogni. All rights reserved.
+// Use of this source code is governed by the MIT license that can be found in
+// the LICENSE file.
diff --git a/examples/dom/style_dim.cpp b/examples/dom/style_dim.cpp
index 44cb66fb..53823a22 100644
--- a/examples/dom/style_dim.cpp
+++ b/examples/dom/style_dim.cpp
@@ -1,7 +1,3 @@
-// Copyright 2020 Arthur Sonzogni. All rights reserved.
-// Use of this source code is governed by the MIT license that can be found in
-// the LICENSE file.
-
 #include <ftxui/dom/elements.hpp>
 #include <ftxui/screen/screen.hpp>
 #include <iostream>
@@ -21,3 +17,7 @@ int main(int argc, const char* argv[]) {
 
   return 0;
 }
+
+// Copyright 2020 Arthur Sonzogni. All rights reserved.
+// Use of this source code is governed by the MIT license that can be found in
+// the LICENSE file.
diff --git a/examples/dom/style_gallery.cpp b/examples/dom/style_gallery.cpp
index 0e59a71f..a1807895 100644
--- a/examples/dom/style_gallery.cpp
+++ b/examples/dom/style_gallery.cpp
@@ -1,7 +1,3 @@
-// Copyright 2020 Arthur Sonzogni. All rights reserved.
-// Use of this source code is governed by the MIT license that can be found in
-// the LICENSE file.
-
 #include <ftxui/dom/elements.hpp>
 #include <ftxui/screen/screen.hpp>
 #include <iostream>
@@ -28,3 +24,7 @@ int main(int argc, const char* argv[]) {
 
   return 0;
 }
+
+// Copyright 2020 Arthur Sonzogni. All rights reserved.
+// Use of this source code is governed by the MIT license that can be found in
+// the LICENSE file.
diff --git a/examples/dom/style_inverted.cpp b/examples/dom/style_inverted.cpp
index 0336f082..ad930ab0 100644
--- a/examples/dom/style_inverted.cpp
+++ b/examples/dom/style_inverted.cpp
@@ -1,7 +1,3 @@
-// Copyright 2020 Arthur Sonzogni. All rights reserved.
-// Use of this source code is governed by the MIT license that can be found in
-// the LICENSE file.
-
 #include <ftxui/dom/elements.hpp>
 #include <ftxui/screen/screen.hpp>
 #include <iostream>
@@ -20,3 +16,7 @@ int main(int argc, const char* argv[]) {
 
   return 0;
 }
+
+// Copyright 2020 Arthur Sonzogni. All rights reserved.
+// Use of this source code is governed by the MIT license that can be found in
+// the LICENSE file.
diff --git a/examples/dom/style_underlined.cpp b/examples/dom/style_underlined.cpp
index ad6eed2c..41c5fd40 100644
--- a/examples/dom/style_underlined.cpp
+++ b/examples/dom/style_underlined.cpp
@@ -1,7 +1,3 @@
-// Copyright 2020 Arthur Sonzogni. All rights reserved.
-// Use of this source code is governed by the MIT license that can be found in
-// the LICENSE file.
-
 #include <ftxui/dom/elements.hpp>
 #include <ftxui/screen/screen.hpp>
 #include <iostream>
@@ -21,3 +17,7 @@ int main(int argc, const char* argv[]) {
 
   return 0;
 }
+
+// Copyright 2020 Arthur Sonzogni. All rights reserved.
+// Use of this source code is governed by the MIT license that can be found in
+// the LICENSE file.
diff --git a/examples/dom/vbox_hbox.cpp b/examples/dom/vbox_hbox.cpp
index f68a992a..93bb984a 100644
--- a/examples/dom/vbox_hbox.cpp
+++ b/examples/dom/vbox_hbox.cpp
@@ -1,7 +1,3 @@
-// Copyright 2020 Arthur Sonzogni. All rights reserved.
-// Use of this source code is governed by the MIT license that can be found in
-// the LICENSE file.
-
 #include <ftxui/dom/elements.hpp>
 #include <ftxui/screen/screen.hpp>
 #include <iostream>
@@ -36,3 +32,7 @@ int main(int argc, const char* argv[]) {
 
   return 0;
 }
+
+// Copyright 2020 Arthur Sonzogni. All rights reserved.
+// Use of this source code is governed by the MIT license that can be found in
+// the LICENSE file.
diff --git a/examples/dom/window.cpp b/examples/dom/window.cpp
index 6134e0d7..7999c572 100644
--- a/examples/dom/window.cpp
+++ b/examples/dom/window.cpp
@@ -1,7 +1,3 @@
-// Copyright 2020 Arthur Sonzogni. All rights reserved.
-// Use of this source code is governed by the MIT license that can be found in
-// the LICENSE file.
-
 #include <ftxui/dom/elements.hpp>
 #include <ftxui/screen/screen.hpp>
 #include <iostream>
@@ -13,3 +9,7 @@ int main(int argc, const char* argv[]) {
   Render(screen, document);
   std::cout << screen.ToString() << std::endl;
 }
+
+// Copyright 2020 Arthur Sonzogni. All rights reserved.
+// Use of this source code is governed by the MIT license that can be found in
+// the LICENSE file.
diff --git a/include/ftxui/component/checkbox.hpp b/include/ftxui/component/checkbox.hpp
index 711490f3..a92b8cd3 100644
--- a/include/ftxui/component/checkbox.hpp
+++ b/include/ftxui/component/checkbox.hpp
@@ -7,7 +7,8 @@
 
 namespace ftxui {
 
-/// @brief A Checkbox. It can be checked or unchecked.Display an element on a ftxui::Screen.
+/// @brief A Checkbox. It can be checked or unchecked.Display an element on a
+/// ftxui::Screen.
 /// @ingroup dom
 class CheckBox : public Component {
  public:
@@ -15,19 +16,19 @@ class CheckBox : public Component {
   CheckBox() = default;
   ~CheckBox() override = default;
 
-  bool state = false; // The current state. true=checked, false:unchecked.
-  std::wstring label = L"label"; // The CheckBox label.
+  bool state = false;  // The current state. true=checked, false:unchecked.
+  std::wstring label = L"label";  // The CheckBox label.
 
 #if defined(_WIN32)
-  std::wstring checked = L"[X] "; /// Prefix for  a "checked" state.
-  std::wstring unchecked = L"[ ] "; /// Prefix for  an "unchecked" state.
+  std::wstring checked = L"[X] ";    /// Prefix for  a "checked" state.
+  std::wstring unchecked = L"[ ] ";  /// Prefix for  an "unchecked" state.
 #else
-  std::wstring checked = L"▣ "; /// Prefix for  a "checked" state.
-  std::wstring unchecked = L"☐ "; /// Prefix for  a "unchecked" state.
+  std::wstring checked = L"▣ ";    /// Prefix for  a "checked" state.
+  std::wstring unchecked = L"☐ ";  /// Prefix for  a "unchecked" state.
 #endif
 
-  Decorator focused_style = inverted; /// Decorator used when focused.
-  Decorator unfocused_style = nothing; /// Decorator used when unfocused.
+  Decorator focused_style = inverted;   /// Decorator used when focused.
+  Decorator unfocused_style = nothing;  /// Decorator used when unfocused.
 
   /// Called when the user change the state of the CheckBox.
   std::function<void()> on_change = []() {};
diff --git a/include/ftxui/screen/color.hpp b/include/ftxui/screen/color.hpp
index 7658ebe6..a32b1f43 100644
--- a/include/ftxui/screen/color.hpp
+++ b/include/ftxui/screen/color.hpp
@@ -11,9 +11,9 @@ namespace ftxui {
 class Color {
  public:
   enum Palette16 : uint8_t;
-  enum Palette256: uint8_t;
+  enum Palette256 : uint8_t;
 
-  Color(); // Transparent.
+  Color();                  // Transparent.
   Color(Palette16 index);   // Implicit conversion from index to Color.
   Color(Palette256 index);  // Implicit conversion from index to Color.
   Color(uint8_t red, uint8_t green, uint8_t blue);
diff --git a/include/ftxui/screen/color_info.hpp b/include/ftxui/screen/color_info.hpp
index 6ac4a76a..2364122f 100644
--- a/include/ftxui/screen/color_info.hpp
+++ b/include/ftxui/screen/color_info.hpp
@@ -21,3 +21,7 @@ ColorInfo GetColorInfo(Color::Palette256 index);
 }  // namespace ftxui
 
 #endif /* end of include guard: FTXUI_SCREEN_COLOR_INFO_HPP */
+
+// Copyright 2020 Arthur Sonzogni. All rights reserved.
+// Use of this source code is governed by the MIT license that can be found in
+// the LICENSE file.
diff --git a/src/ftxui/component/button.cpp b/src/ftxui/component/button.cpp
index 842c8be3..581298ec 100644
--- a/src/ftxui/component/button.cpp
+++ b/src/ftxui/component/button.cpp
@@ -6,7 +6,7 @@ namespace ftxui {
 
 Element Button::Render() {
   if (Focused())
-    return text(label) | border |inverted;
+    return text(label) | border | inverted;
   else
     return text(label) | border;
 }
diff --git a/src/ftxui/component/component.cpp b/src/ftxui/component/component.cpp
index a40c93ff..d89de450 100644
--- a/src/ftxui/component/component.cpp
+++ b/src/ftxui/component/component.cpp
@@ -13,7 +13,7 @@ Component::~Component() {
 /// @brief Return the parent Component, or nul if any.
 /// @see Attach
 /// @see Detach
-/// @see Parent 
+/// @see Parent
 /// @ingroup component
 Component* Component::Parent() {
   return parent_;
@@ -100,7 +100,7 @@ void Component::TakeFocus() {
 /// @brief Detach this children from its parent.
 /// @see Attach
 /// @see Detach
-/// @see Parent 
+/// @see Parent
 /// @ingroup component
 void Component::Detach() {
   if (!parent_)
@@ -113,7 +113,7 @@ void Component::Detach() {
 /// @brief Attach this element to its parent.
 /// @see Attach
 /// @see Detach
-/// @see Parent 
+/// @see Parent
 /// @ingroup component
 void Component::Attach(Component* parent) {
   Detach();
@@ -121,7 +121,6 @@ void Component::Attach(Component* parent) {
   parent_->children_.push_back(this);
 }
 
-
 }  // namespace ftxui
 
 // Copyright 2020 Arthur Sonzogni. All rights reserved.
diff --git a/src/ftxui/component/container.cpp b/src/ftxui/component/container.cpp
index 31f1f394..4b55bcd8 100644
--- a/src/ftxui/component/container.cpp
+++ b/src/ftxui/component/container.cpp
@@ -48,7 +48,7 @@ Component* Container::ActiveChild() {
 }
 
 void Container::SetActiveChild(Component* child) {
-  for(size_t i = 0; i < children_.size(); ++i) {
+  for (size_t i = 0; i < children_.size(); ++i) {
     if (children_[i] == child) {
       (selector_ ? *selector_ : selected_) = i;
       return;
diff --git a/src/ftxui/component/container_test.cpp b/src/ftxui/component/container_test.cpp
index ea5752e7..86f36aec 100644
--- a/src/ftxui/component/container_test.cpp
+++ b/src/ftxui/component/container_test.cpp
@@ -199,7 +199,7 @@ TEST(ContainerTest, SetActiveChild) {
 }
 
 TEST(ContainerTest, TakeFocus) {
-  auto c= Container::Horizontal();
+  auto c = Container::Horizontal();
   auto c1 = Container::Vertical();
   auto c2 = Container::Vertical();
   auto c3 = Container::Vertical();
diff --git a/src/ftxui/dom/spinner.cpp b/src/ftxui/dom/spinner.cpp
index 58d8c7b9..24ea38ba 100644
--- a/src/ftxui/dom/spinner.cpp
+++ b/src/ftxui/dom/spinner.cpp
@@ -245,7 +245,7 @@ static const std::vector<std::vector<std::vector<std::wstring>>> elements = {
 /// ASCII art "video".
 /// @param charset_index The type of "video".
 /// @param image_index The "frame" of the video. You need to increase this for
-///every "step".
+/// every "step".
 /// @ingroup dom
 Element spinner(int charset_index, size_t image_index) {
   if (charset_index == 0) {
diff --git a/src/ftxui/dom/util.cpp b/src/ftxui/dom/util.cpp
index 82b52926..bc86b1b2 100644
--- a/src/ftxui/dom/util.cpp
+++ b/src/ftxui/dom/util.cpp
@@ -41,7 +41,7 @@ Elements operator|(Elements elements, Decorator decorator) {
 /// @brief From an element, apply a decorator.
 /// @return the decorated element.
 /// @ingroup dom
-/// 
+///
 /// ### Example
 ///
 /// Both of these are equivalent:
diff --git a/src/ftxui/screen/color_info.cpp b/src/ftxui/screen/color_info.cpp
index 5958b5ae..184bec7e 100644
--- a/src/ftxui/screen/color_info.cpp
+++ b/src/ftxui/screen/color_info.cpp
@@ -268,3 +268,7 @@ ColorInfo GetColorInfo(Color::Palette256 index) {
 // clang-format off
 
 }
+
+// Copyright 2020 Arthur Sonzogni. All rights reserved.
+// Use of this source code is governed by the MIT license that can be found in
+// the LICENSE file.
diff --git a/tools/format.sh b/tools/format.sh
index b5febfd7..692edb05 100755
--- a/tools/format.sh
+++ b/tools/format.sh
@@ -8,7 +8,7 @@ for file in $files
 do
   if ! grep -q Copyright $file
   then
-    cat $file ./other/license_headers.cpp > $file.new && mv $file.new $file
+    cat $file ./tools/license_headers.cpp > $file.new && mv $file.new $file
   fi
 done