diff --git a/py/hexagram/cluster.py b/py/hexagram/cluster.py
index 118c8be..091ff2c 100644
--- a/py/hexagram/cluster.py
+++ b/py/hexagram/cluster.py
@@ -122,19 +122,10 @@ class Cluster():
                                           rpm_max))
 
     def draw_bg(self, cr: cairo.Context):
-        surface = cairo.RecordingSurface(cairo.Content.COLOR_ALPHA,
-                                         cairo.Rectangle(0, 0, 100, 88))
-
-        surface_cr = cairo.Context(surface)
+        cr.rectangle(0, 0, self.WIDTH, self.HEIGHT)
 
         pattern = HexagonPattern()
-        pattern.draw(surface_cr)
-        surface_cr.stroke()
-
-        cr.set_source_surface(surface, 0, 0)
-        cr.get_source().set_extend(cairo.EXTEND_REPEAT)
-        cr.rectangle(0, 0, self.WIDTH, self.HEIGHT)
-        cr.fill()
+        pattern.fill(cr)
 
         for gauge in self.gauges:
             gauge.draw_bg(cr)
diff --git a/py/hexagram/pattern.py b/py/hexagram/pattern.py
index f245b76..e15e7c9 100644
--- a/py/hexagram/pattern.py
+++ b/py/hexagram/pattern.py
@@ -1,6 +1,19 @@
+import cairo
+
+from typing import Iterable
+
 from hexagram.path import Path
 
-class HexagonPattern(Path):
+class Pattern(Path):
+    pass
+
+class HexagonPattern(Pattern):
+    WIDTH        = 100
+    HEIGHT       = 87
+    COLOR        = (0.3, 0.1, 0.3)
+    MATRIX       = (0.21213203, 0.21213203, -0.21213203, 0.21213203, 1, 1)
+    MATRIX_SCALE = (4, 4)
+
     COMMANDS = [
         ['M', [[23.246093,  0],
                [ 0,        13.382812]]],
@@ -44,3 +57,28 @@ class HexagonPattern(Path):
 
     def __init__(self):
         super().__init__(self.COMMANDS)
+
+    def to_surface(self) -> cairo.RecordingSurface:
+        surface = cairo.RecordingSurface(cairo.Content.COLOR_ALPHA,
+                                         cairo.Rectangle(0, 0, self.WIDTH, self.HEIGHT))
+
+        cr = cairo.Context(surface)
+        cr.set_source_rgb(*self.COLOR)
+
+        self.draw(cr)
+        cr.stroke()
+
+        return surface
+
+    def fill(self, cr: cairo.Context):
+        matrix = cairo.Matrix(*self.MATRIX)
+        matrix.scale(*self.MATRIX_SCALE)
+
+        surface = self.to_surface()
+        cr.set_source_surface(surface, 0, 0)
+
+        source = cr.get_source()
+        source.set_matrix(matrix)
+        source.set_extend(cairo.EXTEND_REPEAT)
+
+        cr.fill()