Remove vispy requirement

Author: joshmoore

.isort.cfg

@@ -1,5 +1,5 @@
 [settings]
-known_third_party = cv2,dask,numpy,pytest,scipy,setuptools,skimage,vispy,zarr
+known_third_party = cv2,dask,numpy,pytest,scipy,setuptools,skimage,zarr
 multi_line_output=6
 include_trailing_comma=False
 force_grid_wrap=0

ome_zarr/reader.py

@@ -8,7 +8,6 @@
 import dask.array as da
 import numpy as np
 from dask import delayed
-from vispy.color import Colormap
 
 from .io import ZarrLocation
 from .types import JSONDict
@@ -337,7 +336,7 @@ def __init__(self, node: Node) -> None:
                     # TODO: make this value an enumeration
                     if model == "greyscale":
                         rgb = [1, 1, 1]
-                    colormaps.append(Colormap([[0, 0, 0], rgb]))
+                    colormaps.append((([0, 0, 0], rgb))
 
                 label = ch.get("label", None)
                 if label is not None:

setup.py

@@ -24,7 +24,6 @@ def read(fname):
 install_requires += (["requests"],)
 install_requires += (["scikit-image"],)
 install_requires += (["toolz"],)
-install_requires += (["vispy"],)
 install_requires += (["opencv-contrib-python-headless"],)