fix issue matplotlib#1881, pgf: add style information for hatchings

Author: pwuertz

lib/matplotlib/backends/backend_pgf.py

@@ -450,6 +450,7 @@ def draw_path(self, gc, path, transform, rgbFace=None):
         # if present, draw pattern on top
         if gc.get_hatch():
             writeln(self.fh, r"\begin{pgfscope}")
+            self._print_pgf_path_styles(gc, rgbFace)
 
             # combine clip and path for clipping
             self._print_pgf_clip(gc)