1 files changed, 6 insertions, 0 deletions
diff --git a/source/blender/editors/interface/interface.c b/source/blender/editors/interface/interface.c
index 7c60ac75df8..f334d4a921a 100644
--- a/source/blender/editors/interface/interface.c
+++ b/source/blender/editors/interface/interface.c
@@ -1687,6 +1687,12 @@ void UI_block_draw(const bContext *C, uiBlock *block)
   }
   else if (block->panel) {
     bool show_background = ar->alignment != RGN_ALIGN_FLOAT;
+    if (show_background) {
+      if (block->panel->type && (block->panel->type->flag & PNL_NO_HEADER)) {
+        /* Without a header there is no background except for region overlap. */
+        show_background = ar->overlap != 0;
+      }
+    }
     ui_draw_aligned_panel(&style, block, &rect, UI_panel_category_is_visible(ar), show_background);
   }