diff --git a/Applications/DisplayProperties/DisplayProperties.cpp b/Applications/DisplayProperties/DisplayProperties.cpp
index 1a10013a958660..0f66590f49e0ae 100644
--- a/Applications/DisplayProperties/DisplayProperties.cpp
+++ b/Applications/DisplayProperties/DisplayProperties.cpp
@@ -69,7 +69,7 @@ void DisplayPropertiesWidget::create_resolution_list()
     m_resolutions.append({ 1920, 1080 });
     m_resolutions.append({ 2560, 1080 });
 
-    Size find_size;
+    Gfx::Size find_size;
 
     bool okay = false;
     // Let's attempt to find the current resolution and select it!
@@ -165,7 +165,7 @@ void DisplayPropertiesWidget::create_frame()
 
     auto resolution_list = GUI::ListView::construct(settings_content);
     resolution_list->set_background_color(Color::White);
-    resolution_list->set_model(*ItemListModel<Size>::create(m_resolutions));
+    resolution_list->set_model(*ItemListModel<Gfx::Size>::create(m_resolutions));
 
     auto resolution_model = resolution_list->model();
     auto find_first_resolution_index = m_resolutions.find_first_index(m_selected_resolution);
diff --git a/Applications/DisplayProperties/DisplayProperties.h b/Applications/DisplayProperties/DisplayProperties.h
index 3f1d0649a650c3..31ff40fe1c8809 100644
--- a/Applications/DisplayProperties/DisplayProperties.h
+++ b/Applications/DisplayProperties/DisplayProperties.h
@@ -67,7 +67,7 @@ class DisplayPropertiesWidget final {
     String m_wallpaper_path;
     RefPtr<Core::ConfigFile> m_wm_config;
     RefPtr<GUI::Widget> m_root_widget;
-    Vector<Size> m_resolutions;
+    Vector<Gfx::Size> m_resolutions;
     Vector<String> m_wallpapers;
     RefPtr<GUI::Label> m_wallpaper_preview;
 
diff --git a/Applications/QuickShow/QSWidget.cpp b/Applications/QuickShow/QSWidget.cpp
index a4161c07d732d9..40e9a86c3f3d5d 100644
--- a/Applications/QuickShow/QSWidget.cpp
+++ b/Applications/QuickShow/QSWidget.cpp
@@ -53,7 +53,7 @@ void QSWidget::set_bitmap(NonnullRefPtr<Gfx::Bitmap> bitmap)
 
 void QSWidget::relayout()
 {
-    Size new_size;
+    Gfx::Size new_size;
     float scale_factor = (float)m_scale / 100.0f;
     new_size.set_width(m_bitmap->width() * scale_factor);
     new_size.set_height(m_bitmap->height() * scale_factor);
diff --git a/DevTools/VisualBuilder/VBForm.cpp b/DevTools/VisualBuilder/VBForm.cpp
index 56f52f008fb781..d8e3e53294d044 100644
--- a/DevTools/VisualBuilder/VBForm.cpp
+++ b/DevTools/VisualBuilder/VBForm.cpp
@@ -354,7 +354,7 @@ void VBForm::mousemove_event(GUI::MouseEvent& event)
             if (widget.is_in_layout())
                 return;
             auto new_rect = widget.transform_origin_rect();
-            Size minimum_size { 5, 5 };
+            Gfx::Size minimum_size { 5, 5 };
             new_rect.set_x(new_rect.x() + change_x);
             new_rect.set_y(new_rect.y() + change_y);
             new_rect.set_width(max(minimum_size.width(), new_rect.width() + change_w));
diff --git a/Games/Minesweeper/Field.cpp b/Games/Minesweeper/Field.cpp
index ddda972f3fe798..f75d697f10d44c 100644
--- a/Games/Minesweeper/Field.cpp
+++ b/Games/Minesweeper/Field.cpp
@@ -119,7 +119,7 @@ class SquareLabel final : public GUI::Label {
     bool m_chord { false };
 };
 
-Field::Field(GUI::Label& flag_label, GUI::Label& time_label, GUI::Button& face_button, GUI::Widget* parent, Function<void(Size)> on_size_changed)
+Field::Field(GUI::Label& flag_label, GUI::Label& time_label, GUI::Button& face_button, GUI::Widget* parent, Function<void(Gfx::Size)> on_size_changed)
     : GUI::Frame(parent)
     , m_face_button(face_button)
     , m_flag_label(flag_label)
diff --git a/Games/Minesweeper/Field.h b/Games/Minesweeper/Field.h
index 5d99b0e3ec4b5e..305a3c83fa154d 100644
--- a/Games/Minesweeper/Field.h
+++ b/Games/Minesweeper/Field.h
@@ -65,7 +65,7 @@ class Field final : public GUI::Frame {
     friend class Square;
     friend class SquareLabel;
 public:
-    Field(GUI::Label& flag_label, GUI::Label& time_label, GUI::Button& face_button, GUI::Widget* parent, Function<void(Size)> on_size_changed);
+    Field(GUI::Label& flag_label, GUI::Label& time_label, GUI::Button& face_button, GUI::Widget* parent, Function<void(Gfx::Size)> on_size_changed);
     virtual ~Field() override;
 
     int rows() const { return m_rows; }
@@ -131,5 +131,5 @@ class Field final : public GUI::Frame {
     bool m_chord_preview { false };
     bool m_first_click { true };
     bool m_single_chording { true };
-    Function<void(Size)> m_on_size_changed;
+    Function<void(Gfx::Size)> m_on_size_changed;
 };
diff --git a/Games/Minesweeper/main.cpp b/Games/Minesweeper/main.cpp
index c159fa9bd198ad..0f50ab8967d07d 100644
--- a/Games/Minesweeper/main.cpp
+++ b/Games/Minesweeper/main.cpp
@@ -78,7 +78,7 @@ int main(int argc, char** argv)
     auto time_icon_label = GUI::Label::construct(container);
     time_icon_label->set_icon(Gfx::Bitmap::load_from_file("/res/icons/minesweeper/timer.png"));
     auto time_label = GUI::Label::construct(container);
-    auto field = Field::construct(*flag_label, *time_label, *face_button, widget, [&](Size size) {
+    auto field = Field::construct(*flag_label, *time_label, *face_button, widget, [&](auto size) {
         size.set_height(size.height() + container->preferred_size().height());
         window->resize(size);
     });
diff --git a/Games/Snake/SnakeGame.cpp b/Games/Snake/SnakeGame.cpp
index 1c312c34850c17..ad32e03a73f2bb 100644
--- a/Games/Snake/SnakeGame.cpp
+++ b/Games/Snake/SnakeGame.cpp
@@ -196,7 +196,7 @@ void SnakeGame::keydown_event(GUI::KeyEvent& event)
 Gfx::Rect SnakeGame::cell_rect(const Coordinate& coord) const
 {
     auto game_rect = rect();
-    auto cell_size = Size(game_rect.width() / m_columns, game_rect.height() / m_rows);
+    auto cell_size = Gfx::Size(game_rect.width() / m_columns, game_rect.height() / m_rows);
     return {
         coord.column * cell_size.width(),
         coord.row * cell_size.height(),
diff --git a/Libraries/LibELF/exec_elf.h b/Libraries/LibELF/exec_elf.h
index 9d39ef40052371..a091cce13c77a6 100644
--- a/Libraries/LibELF/exec_elf.h
+++ b/Libraries/LibELF/exec_elf.h
@@ -77,7 +77,7 @@ typedef uint16_t Elf64_Quarter;
 #define EI_OSABI 7      /* OS/ABI ID */
 #define EI_ABIVERSION 8 /* ABI version */
 #define EI_PAD 9        /* start of pad bytes */
-#define EI_NIDENT 16    /* Size of e_ident[] */
+#define EI_NIDENT 16    /* Gfx::Size of e_ident[] */
 
 /* e_ident[] magic number */
 #define ELFMAG0 0x7f     /* e_ident[EI_MAG0] */
@@ -701,7 +701,7 @@ struct elf_args {
     u_long arg_entry;     /* program entry point */
     u_long arg_interp;    /* Interpreter load address */
     u_long arg_phaddr;    /* program header address */
-    u_long arg_phentsize; /* Size of program header */
+    u_long arg_phentsize; /* Gfx::Size of program header */
     u_long arg_phnum;     /* Number of program headers */
 };
 
diff --git a/Libraries/LibGUI/GBoxLayout.cpp b/Libraries/LibGUI/GBoxLayout.cpp
index c8c2986c3be6cd..b22f1854847c6b 100644
--- a/Libraries/LibGUI/GBoxLayout.cpp
+++ b/Libraries/LibGUI/GBoxLayout.cpp
@@ -48,7 +48,7 @@ void BoxLayout::run(Widget& widget)
     if (m_entries.is_empty())
         return;
 
-    Size available_size = widget.size();
+    Gfx::Size available_size = widget.size();
     int number_of_entries_with_fixed_size = 0;
 
     int number_of_visible_entries = 0;
@@ -91,7 +91,7 @@ void BoxLayout::run(Widget& widget)
     if (should_log)
         dbgprintf("BoxLayout:   available_size=%s, fixed=%d, fill=%d\n", available_size.to_string().characters(), number_of_entries_with_fixed_size, number_of_entries_with_automatic_size);
 
-    Size automatic_size;
+    Gfx::Size automatic_size;
 
     if (number_of_entries_with_automatic_size) {
         if (m_orientation == Orientation::Horizontal) {
diff --git a/Libraries/LibGUI/GComboBox.cpp b/Libraries/LibGUI/GComboBox.cpp
index a8985ee684a2af..30a14b295bfc9e 100644
--- a/Libraries/LibGUI/GComboBox.cpp
+++ b/Libraries/LibGUI/GComboBox.cpp
@@ -113,7 +113,7 @@ void ComboBox::open()
         auto item_text = model()->data(index).to_string();
         longest_item_width = max(longest_item_width, m_list_view->font().width(item_text));
     }
-    Size size {
+    Gfx::Size size {
         max(width(), longest_item_width + m_list_view->width_occupied_by_vertical_scrollbar() + m_list_view->frame_thickness() * 2 + m_list_view->horizontal_padding()),
         model()->row_count() * m_list_view->item_height() + m_list_view->frame_thickness() * 2
     };
diff --git a/Libraries/LibGUI/GDragOperation.cpp b/Libraries/LibGUI/GDragOperation.cpp
index 2524d202c486b2..7f6a8317c55d67 100644
--- a/Libraries/LibGUI/GDragOperation.cpp
+++ b/Libraries/LibGUI/GDragOperation.cpp
@@ -47,7 +47,7 @@ DragOperation::Outcome DragOperation::exec()
     ASSERT(!m_event_loop);
 
     int bitmap_id = -1;
-    Size bitmap_size;
+    Gfx::Size bitmap_size;
     RefPtr<Gfx::Bitmap> shared_bitmap;
     if (m_bitmap) {
         shared_bitmap = m_bitmap->to_shareable_bitmap();
diff --git a/Libraries/LibGUI/GEvent.h b/Libraries/LibGUI/GEvent.h
index a0b3650ef2ea2a..dc23159bf35ab8 100644
--- a/Libraries/LibGUI/GEvent.h
+++ b/Libraries/LibGUI/GEvent.h
@@ -173,7 +173,7 @@ class MultiPaintEvent final : public Event {
     }
 
     const Vector<Gfx::Rect, 32>& rects() const { return m_rects; }
-    Size window_size() const { return m_window_size; }
+    Gfx::Size window_size() const { return m_window_size; }
 
 private:
     Vector<Gfx::Rect, 32> m_rects;
@@ -182,7 +182,7 @@ class MultiPaintEvent final : public Event {
 
 class PaintEvent final : public Event {
 public:
-    explicit PaintEvent(const Gfx::Rect& rect, const Gfx::Size& window_size = Size())
+    explicit PaintEvent(const Gfx::Rect& rect, const Gfx::Size& window_size = {})
         : Event(Event::Paint)
         , m_rect(rect)
         , m_window_size(window_size)
@@ -190,7 +190,7 @@ class PaintEvent final : public Event {
     }
 
     Gfx::Rect rect() const { return m_rect; }
-    Size window_size() const { return m_window_size; }
+    Gfx::Size window_size() const { return m_window_size; }
 
 private:
     Gfx::Rect m_rect;
diff --git a/Libraries/LibGUI/GItemView.h b/Libraries/LibGUI/GItemView.h
index 76c929e92d3e55..61a024dce91be8 100644
--- a/Libraries/LibGUI/GItemView.h
+++ b/Libraries/LibGUI/GItemView.h
@@ -45,7 +45,7 @@ class ItemView : public AbstractView {
     int horizontal_padding() const { return m_horizontal_padding; }
 
     void scroll_into_view(const ModelIndex&, Orientation);
-    Size effective_item_size() const { return m_effective_item_size; }
+    Gfx::Size effective_item_size() const { return m_effective_item_size; }
 
     int model_column() const { return m_model_column; }
     void set_model_column(int column) { m_model_column = column; }
diff --git a/Libraries/LibGUI/GMenu.cpp b/Libraries/LibGUI/GMenu.cpp
index 3768da2098b6a3..b3afc566b0576b 100644
--- a/Libraries/LibGUI/GMenu.cpp
+++ b/Libraries/LibGUI/GMenu.cpp
@@ -124,7 +124,7 @@ int Menu::realize_menu()
             int icon_buffer_id = -1;
             if (action.icon()) {
                 ASSERT(action.icon()->format() == Gfx::Bitmap::Format::RGBA32);
-                ASSERT(action.icon()->size() == Size(16, 16));
+                ASSERT(action.icon()->size() == Gfx::Size(16, 16));
                 if (action.icon()->shared_buffer_id() == -1) {
                     auto shared_buffer = SharedBuffer::create_with_size(action.icon()->size_in_bytes());
                     ASSERT(shared_buffer);
diff --git a/Libraries/LibGUI/GRadioButton.cpp b/Libraries/LibGUI/GRadioButton.cpp
index 369a6f2a652ae5..5cb02f53331872 100644
--- a/Libraries/LibGUI/GRadioButton.cpp
+++ b/Libraries/LibGUI/GRadioButton.cpp
@@ -45,7 +45,7 @@ RadioButton::~RadioButton()
 {
 }
 
-Size RadioButton::circle_size()
+Gfx::Size RadioButton::circle_size()
 {
     return { 12, 12 };
 }
diff --git a/Libraries/LibGUI/GRadioButton.h b/Libraries/LibGUI/GRadioButton.h
index 101d10028e90c7..8e9b8ccc193cc9 100644
--- a/Libraries/LibGUI/GRadioButton.h
+++ b/Libraries/LibGUI/GRadioButton.h
@@ -51,7 +51,7 @@ class RadioButton : public AbstractButton {
 
     template<typename Callback>
     void for_each_in_group(Callback);
-    static Size circle_size();
+    static Gfx::Size circle_size();
 };
 
 }
diff --git a/Libraries/LibGUI/GScrollableWidget.cpp b/Libraries/LibGUI/GScrollableWidget.cpp
index 91df270035181a..daf6fe2b5bc33e 100644
--- a/Libraries/LibGUI/GScrollableWidget.cpp
+++ b/Libraries/LibGUI/GScrollableWidget.cpp
@@ -92,7 +92,7 @@ void ScrollableWidget::resize_event(ResizeEvent& event)
     update_scrollbar_ranges();
 }
 
-Size ScrollableWidget::available_size() const
+Gfx::Size ScrollableWidget::available_size() const
 {
     int available_width = frame_inner_rect().width() - m_size_occupied_by_fixed_elements.width() - width_occupied_by_vertical_scrollbar();
     int available_height = frame_inner_rect().height() - m_size_occupied_by_fixed_elements.height() - height_occupied_by_horizontal_scrollbar();
diff --git a/Libraries/LibGUI/GScrollableWidget.h b/Libraries/LibGUI/GScrollableWidget.h
index 670a4be00ffa76..2b8888e0142220 100644
--- a/Libraries/LibGUI/GScrollableWidget.h
+++ b/Libraries/LibGUI/GScrollableWidget.h
@@ -37,7 +37,7 @@ class ScrollableWidget : public Frame {
 public:
     virtual ~ScrollableWidget() override;
 
-    Size content_size() const { return m_content_size; }
+    Gfx::Size content_size() const { return m_content_size; }
     int content_width() const { return m_content_size.width(); }
     int content_height() const { return m_content_size.height(); }
 
@@ -51,7 +51,7 @@ class ScrollableWidget : public Frame {
     void set_scrollbars_enabled(bool);
     bool is_scrollbars_enabled() const { return m_scrollbars_enabled; }
 
-    Size available_size() const;
+    Gfx::Size available_size() const;
 
     ScrollBar& vertical_scrollbar() { return *m_vertical_scrollbar; }
     const ScrollBar& vertical_scrollbar() const { return *m_vertical_scrollbar; }
diff --git a/Libraries/LibGUI/GVariant.h b/Libraries/LibGUI/GVariant.h
index 40a17eaaf4a511..557709ea1009ac 100644
--- a/Libraries/LibGUI/GVariant.h
+++ b/Libraries/LibGUI/GVariant.h
@@ -189,7 +189,7 @@ class Variant {
         return { m_value.as_point.x, m_value.as_point.y };
     }
 
-    Size as_size() const
+    Gfx::Size as_size() const
     {
         return { m_value.as_size.width, m_value.as_size.height };
     }
diff --git a/Libraries/LibGUI/GWidget.h b/Libraries/LibGUI/GWidget.h
index 48c19a7744a2ab..353424465f361a 100644
--- a/Libraries/LibGUI/GWidget.h
+++ b/Libraries/LibGUI/GWidget.h
@@ -124,7 +124,7 @@ class Widget : public Core::Object {
     void set_size_policy(SizePolicy horizontal_policy, SizePolicy vertical_policy);
     void set_size_policy(Orientation, SizePolicy);
 
-    Size preferred_size() const { return m_preferred_size; }
+    Gfx::Size preferred_size() const { return m_preferred_size; }
     void set_preferred_size(const Gfx::Size&);
     void set_preferred_size(int width, int height) { set_preferred_size({ width, height }); }
 
@@ -156,7 +156,7 @@ class Widget : public Core::Object {
     int length(Orientation orientation) const { return orientation == Orientation::Vertical ? height() : width(); }
 
     Gfx::Rect rect() const { return { 0, 0, width(), height() }; }
-    Size size() const { return m_relative_rect.size(); }
+    Gfx::Size size() const { return m_relative_rect.size(); }
 
     void update();
     void update(const Gfx::Rect&);
diff --git a/Libraries/LibGUI/GWindow.h b/Libraries/LibGUI/GWindow.h
index b57a22f2fa4d23..3772e7f79c8073 100644
--- a/Libraries/LibGUI/GWindow.h
+++ b/Libraries/LibGUI/GWindow.h
@@ -102,7 +102,7 @@ class Window : public Core::Object {
     int height() const { return rect().height(); }
 
     Gfx::Rect rect() const;
-    Size size() const { return rect().size(); }
+    Gfx::Size size() const { return rect().size(); }
     void set_rect(const Gfx::Rect&);
     void set_rect(int x, int y, int width, int height) { set_rect({ x, y, width, height }); }
 
@@ -152,9 +152,9 @@ class Window : public Core::Object {
     Gfx::Bitmap* front_bitmap() { return m_front_bitmap.ptr(); }
     Gfx::Bitmap* back_bitmap() { return m_back_bitmap.ptr(); }
 
-    Size size_increment() const { return m_size_increment; }
+    Gfx::Size size_increment() const { return m_size_increment; }
     void set_size_increment(const Gfx::Size& increment) { m_size_increment = increment; }
-    Size base_size() const { return m_base_size; }
+    Gfx::Size base_size() const { return m_base_size; }
     void set_base_size(const Gfx::Size& size) { m_base_size = size; }
 
     void set_override_cursor(StandardCursor);
diff --git a/Libraries/LibGfx/Size.h b/Libraries/LibGfx/Size.h
index 1430bfb903b32a..fbb9cc0a2a084c 100644
--- a/Libraries/LibGfx/Size.h
+++ b/Libraries/LibGfx/Size.h
@@ -115,5 +115,3 @@ inline const LogStream& operator<<(const LogStream& stream, const Size& value)
 }
 
 }
-
-using Gfx::Size;
diff --git a/Libraries/LibVT/TerminalWidget.cpp b/Libraries/LibVT/TerminalWidget.cpp
index c2fc9afab71db1..d5bddf33b90d8d 100644
--- a/Libraries/LibVT/TerminalWidget.cpp
+++ b/Libraries/LibVT/TerminalWidget.cpp
@@ -439,7 +439,7 @@ void TerminalWidget::relayout(const Gfx::Size& size)
     m_scrollbar->set_relative_rect(scrollbar_rect);
 }
 
-Size TerminalWidget::compute_base_size() const
+Gfx::Size TerminalWidget::compute_base_size() const
 {
     int base_width = frame_thickness() * 2 + m_inset * 2 + m_scrollbar->width();
     int base_height = frame_thickness() * 2 + m_inset * 2;
diff --git a/Libraries/LibVT/TerminalWidget.h b/Libraries/LibVT/TerminalWidget.h
index e83b0da6792109..e107f6334c1ff6 100644
--- a/Libraries/LibVT/TerminalWidget.h
+++ b/Libraries/LibVT/TerminalWidget.h
@@ -122,7 +122,7 @@ class TerminalWidget final : public GUI::Frame
 
     void relayout(const Gfx::Size&);
 
-    Size compute_base_size() const;
+    Gfx::Size compute_base_size() const;
     int first_selection_column_on_row(int row) const;
     int last_selection_column_on_row(int row) const;
 
diff --git a/Servers/WindowServer/WSCursor.h b/Servers/WindowServer/WSCursor.h
index 4f42de6ffd00ec..881cd8d2824b25 100644
--- a/Servers/WindowServer/WSCursor.h
+++ b/Servers/WindowServer/WSCursor.h
@@ -51,7 +51,7 @@ class WSCursor : public RefCounted<WSCursor> {
     const Gfx::Bitmap& bitmap() const { return *m_bitmap; }
 
     Gfx::Rect rect() const { return m_bitmap->rect(); }
-    Size size() const { return m_bitmap->size(); }
+    Gfx::Size size() const { return m_bitmap->size(); }
 
 private:
     WSCursor(NonnullRefPtr<Gfx::Bitmap>&&, const Gfx::Point&);
diff --git a/Servers/WindowServer/WSScreen.h b/Servers/WindowServer/WSScreen.h
index 28e486e10aeef2..cee4700c66587a 100644
--- a/Servers/WindowServer/WSScreen.h
+++ b/Servers/WindowServer/WSScreen.h
@@ -49,7 +49,7 @@ class WSScreen {
 
     static WSScreen& the();
 
-    Size size() const { return { width(), height() }; }
+    Gfx::Size size() const { return { width(), height() }; }
     Gfx::Rect rect() const { return { 0, 0, width(), height() }; }
 
     Gfx::Point cursor_location() const { return m_cursor_location; }
diff --git a/Servers/WindowServer/WSWindow.h b/Servers/WindowServer/WSWindow.h
index 75976f397e3e9b..215cfdc1773fa1 100644
--- a/Servers/WindowServer/WSWindow.h
+++ b/Servers/WindowServer/WSWindow.h
@@ -159,7 +159,7 @@ class WSWindow final : public Core::Object
     void set_position(const Gfx::Point& position) { set_rect({ position.x(), position.y(), width(), height() }); }
     void set_position_without_repaint(const Gfx::Point& position) { set_rect_without_repaint({ position.x(), position.y(), width(), height() }); }
 
-    Size size() const { return m_rect.size(); }
+    Gfx::Size size() const { return m_rect.size(); }
 
     void invalidate();
     void invalidate(const Gfx::Rect&);
@@ -193,10 +193,10 @@ class WSWindow final : public Core::Object
     bool has_alpha_channel() const { return m_has_alpha_channel; }
     void set_has_alpha_channel(bool value) { m_has_alpha_channel = value; }
 
-    Size size_increment() const { return m_size_increment; }
+    Gfx::Size size_increment() const { return m_size_increment; }
     void set_size_increment(const Gfx::Size& increment) { m_size_increment = increment; }
 
-    Size base_size() const { return m_base_size; }
+    Gfx::Size base_size() const { return m_base_size; }
     void set_base_size(const Gfx::Size& size) { m_base_size = size; }
 
     const Gfx::Bitmap& icon() const { return *m_icon; }
diff --git a/Servers/WindowServer/WSWindowManager.cpp b/Servers/WindowServer/WSWindowManager.cpp
index 24502b4a7d9f1a..3b97e297c990ad 100644
--- a/Servers/WindowServer/WSWindowManager.cpp
+++ b/Servers/WindowServer/WSWindowManager.cpp
@@ -146,7 +146,7 @@ void WSWindowManager::set_resolution(int width, int height)
         client.notify_about_new_screen_rect(WSScreen::the().rect());
     });
     if (m_wm_config) {
-        dbg() << "Saving resolution: " << Size(width, height) << " to config file at " << m_wm_config->file_name();
+        dbg() << "Saving resolution: " << Gfx::Size(width, height) << " to config file at " << m_wm_config->file_name();
         m_wm_config->write_num_entry("Screen", "Width", width);
         m_wm_config->write_num_entry("Screen", "Height", height);
         m_wm_config->sync();
@@ -542,7 +542,7 @@ bool WSWindowManager::process_ongoing_window_resize(const WSMouseEvent& event, W
     auto new_rect = m_resize_window_original_rect;
 
     // First, size the new rect.
-    Size minimum_size { 50, 50 };
+    Gfx::Size minimum_size { 50, 50 };
 
     new_rect.set_width(max(minimum_size.width(), new_rect.width() + change_w));
     new_rect.set_height(max(minimum_size.height(), new_rect.height() + change_h));