Setting `color` parameter to a hvplot.paths datashaded plot does not have any effect

#### ALL software version info

Software Version Info

```plaintext
hvplot = 0.10.0
pandas = 2.2.1
```

#### Description of expected behavior and the observed behavior

##### Expected behavior
I expect the lines to be colored with the provided colors.

##### Observed behavior
The default colors are still used, ignoring the provided colors

#### Complete, minimal, self-contained example code that reproduces the issue

```python
import pandas as pd
import hvplot.pandas # noqa

df = pd.DataFrame({"x": [0, 1, None, 2, 3], "y": [0, 1, None, 2, 3],
'ascending': [True, True, None, False, False]})

df.hvplot.paths('x', 'y', by='ascending', datashade=True, color=['green', 'black'])
```

#### Stack traceback and/or browser JavaScript console output
None.

#### Screenshots or screencasts of the bug in action

- [x] I may be interested in making a pull request to address this