Fix VS 2026 Windows build

src/canvas.cpp

@@ -877,8 +877,7 @@ static void execute_canvas_draw_merge_plane_dispatch(
             brush,
             ortho,
             use_blend,
-            copy_blend_destination,
-            draw_checkerboard);
+            copy_blend_destination);
     }
 
     execute_canvas_draw_merge_plane_final_composite(canvas, ortho, draw_checkerboard, use_blend);