diff --git a/3rdparty/ocornut-imgui/imgui.cpp b/3rdparty/ocornut-imgui/imgui.cpp
index 50270eaf2..89146b727 100644
--- a/3rdparty/ocornut-imgui/imgui.cpp
+++ b/3rdparty/ocornut-imgui/imgui.cpp
@@ -1,4 +1,4 @@
-// dear imgui, v1.53
+// dear imgui, v1.54 WIP
 // (main code and documentation)
 
 // Call and read ImGui::ShowDemoWindow() in imgui_demo.cpp for demo code.
@@ -2917,7 +2917,7 @@ void ImGui::EndFrame()
     IM_ASSERT(g.CurrentWindowStack.Size == 1);    // Mismatched Begin()/End() calls
     if (g.CurrentWindow && !g.CurrentWindow->WriteAccessed)
         g.CurrentWindow->Active = false;
-    ImGui::End();
+    End();
 
     if (g.ActiveId == 0 && g.HoveredId == 0)
     {
@@ -3718,7 +3718,7 @@ void ImGui::BeginTooltip()
 void ImGui::EndTooltip()
 {
     IM_ASSERT(GetCurrentWindowRead()->Flags & ImGuiWindowFlags_Tooltip);   // Mismatched BeginTooltip()/EndTooltip() calls
-    ImGui::End();
+    End();
 }
 
 // Mark popup as open (toggle toward open state).
@@ -3888,7 +3888,7 @@ bool ImGui::BeginPopupModal(const char* name, bool* p_open, ImGuiWindowFlags ext
     }
 
     // Center modal windows by default
-    if ((window->SetWindowPosAllowFlags & g.SetNextWindowPosCond) == 0)
+    if (g.SetNextWindowPosCond == 0)
         SetNextWindowPos(g.IO.DisplaySize * 0.5f, ImGuiCond_Appearing, ImVec2(0.5f, 0.5f));
 
     ImGuiWindowFlags flags = extra_flags|ImGuiWindowFlags_Popup|ImGuiWindowFlags_Modal|ImGuiWindowFlags_NoCollapse|ImGuiWindowFlags_NoSavedSettings;
@@ -4014,7 +4014,7 @@ void ImGui::EndChild()
     IM_ASSERT(window->Flags & ImGuiWindowFlags_ChildWindow);   // Mismatched BeginChild()/EndChild() callss
     if (window->BeginCount > 1)
     {
-        ImGui::End();
+        End();
     }
     else
     {
@@ -4024,7 +4024,7 @@ void ImGui::EndChild()
             sz.x = ImMax(4.0f, sz.x);
         if (window->AutoFitChildAxises & (1 << ImGuiAxis_Y))
             sz.y = ImMax(4.0f, sz.y);
-        ImGui::End();
+        End();
 
         ImGuiWindow* parent_window = GetCurrentWindow();
         ImRect bb(parent_window->DC.CursorPos, parent_window->DC.CursorPos + sz);
@@ -6706,7 +6706,8 @@ bool ImGui::TreeNodeBehavior(ImGuiID id, ImGuiTreeNodeFlags flags, const char* l
     // - OpenOnArrow .................... single-click on arrow to open
     // - OpenOnDoubleClick|OpenOnArrow .. single-click on arrow or double-click anywhere to open
     ImGuiButtonFlags button_flags = ImGuiButtonFlags_NoKeyModifiers | ((flags & ImGuiTreeNodeFlags_AllowItemOverlap) ? ImGuiButtonFlags_AllowItemOverlap : 0);
-    button_flags |= ImGuiButtonFlags_PressedOnDragDropHold;
+    if (!(flags & ImGuiTreeNodeFlags_Leaf))
+        button_flags |= ImGuiButtonFlags_PressedOnDragDropHold;
     if (flags & ImGuiTreeNodeFlags_OpenOnDoubleClick)
         button_flags |= ImGuiButtonFlags_PressedOnDoubleClick | ((flags & ImGuiTreeNodeFlags_OpenOnArrow) ? ImGuiButtonFlags_PressedOnClickRelease : 0);
 
@@ -9233,14 +9234,15 @@ bool ImGui::BeginCombo(const char* label, const char* preview_value, ImGuiComboF
 
     // Peak into expected window size so we can position it
     if (ImGuiWindow* popup_window = FindWindowByName(name))
-    {
-        ImVec2 size_contents = CalcSizeContents(popup_window);
-        ImVec2 size_expected = CalcSizeAfterConstraint(popup_window, CalcSizeAutoFit(popup_window, size_contents));
-        if (flags & ImGuiComboFlags_PopupAlignLeft)
-            popup_window->AutoPosLastDirection = ImGuiDir_Left;
-        ImVec2 pos = FindBestWindowPosForPopup(frame_bb.GetBL(), size_expected, &popup_window->AutoPosLastDirection, frame_bb, ImGuiPopupPositionPolicy_ComboBox);
-        SetNextWindowPos(pos);
-    }
+        if (popup_window->WasActive)
+        {
+            ImVec2 size_contents = CalcSizeContents(popup_window);
+            ImVec2 size_expected = CalcSizeAfterConstraint(popup_window, CalcSizeAutoFit(popup_window, size_contents));
+            if (flags & ImGuiComboFlags_PopupAlignLeft)
+                popup_window->AutoPosLastDirection = ImGuiDir_Left;
+            ImVec2 pos = FindBestWindowPosForPopup(frame_bb.GetBL(), size_expected, &popup_window->AutoPosLastDirection, frame_bb, ImGuiPopupPositionPolicy_ComboBox);
+            SetNextWindowPos(pos);
+        }
 
     ImGuiWindowFlags window_flags = ImGuiWindowFlags_AlwaysAutoResize | ImGuiWindowFlags_Popup | ImGuiWindowFlags_NoTitleBar | ImGuiWindowFlags_NoResize | ImGuiWindowFlags_NoSavedSettings;
     if (!Begin(name, NULL, window_flags))
@@ -9634,7 +9636,7 @@ bool ImGui::BeginMenuBar()
     // We remove 1 worth of rounding to Max.x to that text in long menus don't tend to display over the lower-right rounded area, which looks particularly glitchy.
     ImRect bar_rect = window->MenuBarRect();
     ImRect clip_rect(ImFloor(bar_rect.Min.x + 0.5f), ImFloor(bar_rect.Min.y + window->WindowBorderSize + 0.5f), ImFloor(ImMax(bar_rect.Min.x, bar_rect.Max.x - window->WindowRounding) + 0.5f), ImFloor(bar_rect.Max.y + 0.5f));
-    clip_rect.ClipWith(window->Rect());
+    clip_rect.ClipWith(window->WindowRectClipped);
     PushClipRect(clip_rect.Min, clip_rect.Max, false);
 
     window->DC.CursorPos = ImVec2(bar_rect.Min.x + window->DC.MenuBarOffsetX, bar_rect.Min.y);// + g.Style.FramePadding.y);
@@ -11481,6 +11483,12 @@ void ImGui::EndDragDropTarget()
     IM_ASSERT(g.DragDropActive);
 }
 
+bool ImGui::IsDragDropActive()
+{
+    ImGuiContext& g = *GImGui;
+    return g.DragDropActive;
+}
+
 //-----------------------------------------------------------------------------
 // PLATFORM DEPENDENT HELPERS
 //-----------------------------------------------------------------------------
@@ -11726,6 +11734,7 @@ void ImGui::ShowMetricsWindow(bool* p_open)
             ImGui::Text("ActiveId: 0x%08X/0x%08X (%.2f sec)", g.ActiveId, g.ActiveIdPreviousFrame, g.ActiveIdTimer);
             ImGui::Text("ActiveIdWindow: '%s'", g.ActiveIdWindow ? g.ActiveIdWindow->Name : "NULL");
             ImGui::Text("NavWindow: '%s'", g.NavWindow ? g.NavWindow->Name : "NULL");
+            ImGui::Text("DragDrop: %d, SourceId = 0x%08X, Payload \"%s\" (%d bytes)", g.DragDropActive, g.DragDropPayload.SourceId, g.DragDropPayload.DataType, g.DragDropPayload.DataSize);
             ImGui::TreePop();
         }
     }
diff --git a/3rdparty/ocornut-imgui/imgui.h b/3rdparty/ocornut-imgui/imgui.h
index d165f8d24..b801ec0e7 100644
--- a/3rdparty/ocornut-imgui/imgui.h
+++ b/3rdparty/ocornut-imgui/imgui.h
@@ -1,4 +1,4 @@
-// dear imgui, v1.53
+// dear imgui, v1.54 WIP
 // (headers)
 
 // See imgui.cpp file for documentation.
@@ -16,7 +16,7 @@
 #include <stddef.h>         // ptrdiff_t, NULL
 #include <string.h>         // memset, memmove, memcpy, strlen, strchr, strcpy, strcmp
 
-#define IMGUI_VERSION       "1.53"
+#define IMGUI_VERSION       "1.54 WIP"
 
 // Define attributes of all API symbols declarations, e.g. for DLL under Windows.
 #ifndef IMGUI_API
@@ -433,6 +433,7 @@ namespace ImGui
     IMGUI_API bool          BeginDragDropTarget();                                                                  // call after submitting an item that may receive an item. If this returns true, you can call AcceptDragDropPayload() + EndDragDropTarget()
     IMGUI_API const ImGuiPayload* AcceptDragDropPayload(const char* type, ImGuiDragDropFlags flags = 0);            // accept contents of a given type. If ImGuiDragDropFlags_AcceptBeforeDelivery is set you can peek into the payload before the mouse button is released.
     IMGUI_API void          EndDragDropTarget();
+    IMGUI_API bool          IsDragDropActive();
 
     // Clipping
     IMGUI_API void          PushClipRect(const ImVec2& clip_rect_min, const ImVec2& clip_rect_max, bool intersect_with_current_clip_rect);
diff --git a/3rdparty/ocornut-imgui/imgui_demo.cpp b/3rdparty/ocornut-imgui/imgui_demo.cpp
index a5864fefb..1ccc2990e 100644
--- a/3rdparty/ocornut-imgui/imgui_demo.cpp
+++ b/3rdparty/ocornut-imgui/imgui_demo.cpp
@@ -1,4 +1,4 @@
-// dear imgui, v1.53
+// dear imgui, v1.54 WIP
 // (demo code)
 
 // Message to the person tempted to delete this file when integrating ImGui into their code base:
@@ -2365,6 +2365,7 @@ static void ShowExampleAppFixedOverlay(bool* p_open)
             if (ImGui::MenuItem("Top-right", NULL, corner == 1)) corner = 1;
             if (ImGui::MenuItem("Bottom-left", NULL, corner == 2)) corner = 2;
             if (ImGui::MenuItem("Bottom-right", NULL, corner == 3)) corner = 3;
+            if (p_open && ImGui::MenuItem("Close")) *p_open = false; 
             ImGui::EndPopup();
         }
         ImGui::End();
diff --git a/3rdparty/ocornut-imgui/imgui_draw.cpp b/3rdparty/ocornut-imgui/imgui_draw.cpp
index 2198da5e5..57b87a1b2 100644
--- a/3rdparty/ocornut-imgui/imgui_draw.cpp
+++ b/3rdparty/ocornut-imgui/imgui_draw.cpp
@@ -1,4 +1,4 @@
-// dear imgui, v1.53
+// dear imgui, v1.54 WIP
 // (drawing and font code)
 
 // Contains implementation for
diff --git a/3rdparty/ocornut-imgui/imgui_internal.h b/3rdparty/ocornut-imgui/imgui_internal.h
index 804353902..797d66d62 100644
--- a/3rdparty/ocornut-imgui/imgui_internal.h
+++ b/3rdparty/ocornut-imgui/imgui_internal.h
@@ -1,4 +1,4 @@
-// dear imgui, v1.53
+// dear imgui, v1.54 WIP
 // (internals)
 
 // You may use this file to debug, understand or extend ImGui features but we don't provide any guarantee of forward compatibility!