From 3de80d3b20d03a2c9f833eb31a6edc50e25522f1 Mon Sep 17 00:00:00 2001
From: jean-pierre charras <jp.charras@wanadoo.fr>
Date: Fri, 7 Apr 2023 11:34:42 +0200
Subject: [PATCH] Plot gerber: fix a too zealous plot of negative objects on
 the silkscreen layers, when merging layers to silkscreen layers. From master
 branch

---
 pcbnew/plot_board_layers.cpp | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/pcbnew/plot_board_layers.cpp b/pcbnew/plot_board_layers.cpp
index e92fd9593a..b59a64b971 100644
--- a/pcbnew/plot_board_layers.cpp
+++ b/pcbnew/plot_board_layers.cpp
@@ -207,6 +207,9 @@ void PlotOneBoardLayer( BOARD *aBoard, PLOTTER* aPlotter, PCB_LAYER_ID aLayer,
 
                 // Plot the mask
                 PlotStandardLayer( aBoard, aPlotter, layer_mask, plotOpt );
+
+                // Disable the negative polarity
+                aPlotter->SetLayerPolarity( true );
             }
 
             break;