CloseButton: Fixed cross positioning.

imgui.cpp

@@ -6458,12 +6458,13 @@ bool ImGui::CloseButton(ImGuiID id, const ImVec2& pos, float radius)
 
     // Render
     const ImU32 col = GetColorU32((held && hovered) ? ImGuiCol_CloseButtonActive : hovered ? ImGuiCol_CloseButtonHovered : ImGuiCol_CloseButton);
-    const ImVec2 center = bb.GetCenter();
+    ImVec2 center = bb.GetCenter();
     window->DrawList->AddCircleFilled(center, ImMax(2.0f, radius), col, 12);
 
     const float cross_extent = (radius * 0.7071f) - 1.0f;
     if (hovered)
     {
+        center -= ImVec2(0.5f, 0.5f);
         window->DrawList->AddLine(center + ImVec2(+cross_extent,+cross_extent), center + ImVec2(-cross_extent,-cross_extent), GetColorU32(ImGuiCol_Text));
         window->DrawList->AddLine(center + ImVec2(+cross_extent,-cross_extent), center + ImVec2(-cross_extent,+cross_extent), GetColorU32(ImGuiCol_Text));
     }