Merge pull request matplotlib#29392 from r3kste/pdf_hatch_fill_patch

Fill hatch in PDF backend

Author: QuLogic

lib/matplotlib/backends/backend_pdf.py

@@ -1576,6 +1576,8 @@ def writeHatches(self):
                             Op.setrgb_nonstroke,
                             0, 0, sidelen, sidelen, Op.rectangle,
                             Op.fill)
+            self.output(stroke_rgb[0], stroke_rgb[1], stroke_rgb[2],
+                        Op.setrgb_nonstroke)
 
             self.output(lw, Op.setlinewidth)