diff --git a/boxes/generators/filltest.py b/boxes/generators/filltest.py
new file mode 100644
index 0000000..28baed7
--- /dev/null
+++ b/boxes/generators/filltest.py
@@ -0,0 +1,78 @@
+#!/usr/bin/env python3
+# Copyright (C) 2013-2016 Florian Festi
+#
+#   This program is free software: you can redistribute it and/or modify
+#   it under the terms of the GNU General Public License as published by
+#   the Free Software Foundation, either version 3 of the License, or
+#   (at your option) any later version.
+#
+#   This program is distributed in the hope that it will be useful,
+#   but WITHOUT ANY WARRANTY; without even the implied warranty of
+#   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+#   GNU General Public License for more details.
+#
+#   You should have received a copy of the GNU General Public License
+#   along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+from boxes import *
+from shapely.geometry import *
+import random
+import time
+
+class FillTest(Boxes): # Change class name!
+    """Piece for testing different settings for hole filling"""
+
+    ui_group = "Part"
+
+    def __init__(self):
+        Boxes.__init__(self)
+
+        self.addSettingsArgs(fillHolesSettings, fill_pattern="hex")
+
+        self.buildArgParser(x=320, y=220)
+
+
+    def xHoles(self):
+#        border = [(5, 10), (245, 10), (225, 150), (235, 150), (255, 10), (290, 10), (270, 190), (45, 190), (45, 50), (35, 50), (35, 190), (5, 190)]
+
+        x, y = self.x, self.y
+
+        border = [
+            (  5/320*x,  10/220*y),
+            (245/320*x,  10/220*y),
+            (225/320*x, 150/220*y),
+            (235/320*x, 150/220*y),
+            (255/320*x,  10/220*y),
+            (290/320*x,  10/220*y),
+            (270/320*x, 190/220*y),
+            ( 45/320*x, 190/220*y),
+            ( 45/320*x,  50/220*y),
+            ( 35/320*x,  50/220*y),
+            ( 35/320*x, 190/220*y),
+            (  5/320*x, 190/220*y),
+            ]
+
+
+        self.showBorderPoly(border)
+        self.text("Area to be filled", x/2, 190/220*y, align="bottom center", color=Color.ANNOTATIONS)
+
+        start_time = time.time()
+        self.fillHoles(
+            pattern=self.fillHoles_fill_pattern,
+            border=border,
+            max_radius=self.fillHoles_hole_max_radius,
+            hspace=self.fillHoles_space_between_holes,
+            bspace=self.fillHoles_space_to_border,
+            min_radius=self.fillHoles_hole_min_radius,
+            style=self.fillHoles_hole_style,
+            bar_length=self.fillHoles_bar_length,
+            max_random=self.fillHoles_max_random
+            )
+        end_time = time.time()
+
+#        print('fillHoles - Execution time:', (end_time-start_time)*1000, 'ms ', self.fillHoles_fill_pattern)
+
+    def render(self):
+        self.rectangularWall(self.x, self.y, "eeee", callback=[self.xHoles, None, None, None],)
+
+