Typo fixed in image w parameter (height instead of width)
@@ -531,7 +531,7 @@ class ImageURL(XYGlyph):
""")
w = DistanceSpec(default=None, help="""
- The height of the plot region that the image will occupy in data space.
+ The width of the plot region that the image will occupy in data space.
The default value is ``None``, in which case the image will be displayed
at its actual image size (regardless of the units specified here).
