From b75acc21b09fdcb3a8f9d7a84ba6cc197519f09d Mon Sep 17 00:00:00 2001
From: omar <omarcornut@gmail.com>
Date: Sun, 10 Dec 2017 16:48:18 +0100
Subject: [PATCH] Fix for border under title bar when WindowBorderSize == 0 and
 FrameBorderSize > 0

---
 imgui.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/imgui.cpp b/imgui.cpp
index a9e4dce74..ec20f7daf 100644
--- a/imgui.cpp
+++ b/imgui.cpp
@@ -4766,7 +4766,7 @@ bool ImGui::Begin(const char* name, bool* p_open, ImGuiWindowFlags flags)
                 window->DrawList->AddLine(border.Min, border.Max, GetColorU32(ImGuiCol_SeparatorActive), ImMax(1.0f, window_border_size));
             }
             if (style.FrameBorderSize > 0 && !(flags & ImGuiWindowFlags_NoTitleBar))
-                window->DrawList->AddLine(title_bar_rect.GetBL()+ImVec2(1,-1), title_bar_rect.GetBR()+ImVec2(-1,-1), GetColorU32(ImGuiCol_Border), style.FrameBorderSize);
+                window->DrawList->AddLine(title_bar_rect.GetBL() + ImVec2(style.WindowBorderSize, -1), title_bar_rect.GetBR() + ImVec2(-style.WindowBorderSize,-1), GetColorU32(ImGuiCol_Border), style.FrameBorderSize);
         }
 
         // Store a backup of SizeFull which we will use next frame to decide if we need scrollbars.