diff --git a/tensorhue/__init__.py b/tensorhue/__init__.py
index 3c2360d..77569e3 100644
--- a/tensorhue/__init__.py
+++ b/tensorhue/__init__.py
@@ -3,39 +3,44 @@
 import numpy as np
 from tensorhue.version import VERSION
 from tensorhue.colors import COLORS
+
 __version__ = VERSION
 
-__all__ = [
-    "set_printoptions",
-    "setup"
-]
+__all__ = ["set_printoptions", "setup"]
+
 
 def viz(self) -> None:
     if isinstance(self, torch.FloatTensor):
-        _viz_Tensor(self, COLORS['default_dark'], COLORS['default_bright'])
+        _viz_Tensor(self, COLORS["default_dark"], COLORS["default_bright"])
     elif isinstance(self, torch.BoolTensor):
-        _viz_Tensor(self, COLORS['false'], COLORS['true'])
+        _viz_Tensor(self, COLORS["false"], COLORS["true"])
 
 
 def _viz_Tensor(self, colors: tuple[tuple[int], tuple[int]] = None) -> None:
     data = self.data.numpy()
     shape = data.shape
-    color_a = np.array(color_a)
-    color_b = np.array(color_b)
-    color = ((1 - data[::2, :, None]) * color_a + data[::2, :, None] * color_b).astype(int)
-    bgcolor = ((1 - data[1::2, :, None]) * color_a + data[1::2, :, None] * color_b).astype(int)
-    
+    color_a = np.array(colors[0])
+    color_b = np.array(colors[1])
+    color = ((1 - data[::2, :, None]) * color_a + data[::2, :, None] * color_b).astype(
+        int
+    )
+    bgcolor = (
+        (1 - data[1::2, :, None]) * color_a + data[1::2, :, None] * color_b
+    ).astype(int)
+
     result_parts = []
     for y in range(shape[0] // 2):
         for x in range(shape[1]):
-            result_parts.append(f"[rgb({color[y, x, 0]},{color[y, x, 1]},{color[y, x, 2]}) on rgb({bgcolor[y, x, 0]},{bgcolor[y, x, 1]},{bgcolor[y, x, 2]})]▀[/]")
+            result_parts.append(
+                f"[rgb({color[y, x, 0]},{color[y, x, 1]},{color[y, x, 2]}) on rgb({bgcolor[y, x, 0]},{bgcolor[y, x, 1]},{bgcolor[y, x, 2]})]▀[/]"
+            )
         result_parts.append("\n")
-    
+
     c = Console(log_path=False, record=False)
-    c.print(''.join(result_parts))
+    c.print("".join(result_parts))
 
 
-# automagically set up tensorhue
-if 'torch' in sys.modules:
-    torch = sys.modules['torch']
+# automagically set up TensorHue
+if "torch" in sys.modules:
+    torch = sys.modules["torch"]
     setattr(torch.Tensor, "viz", viz)