Pip! Gold

Here's what I think is going on, in a bit more detail. `Color.range_to()` works in HSL space. But the colour library treats any color with a saturation of zero as...

I'm seeing this behavior on a Raspberry Pi running Raspbian (both release 9 and 10). I'm running OpenHAB 2.4.0 installed from the https://openhab.jfrog.io/openhab/openhab-linuxpkg apt repository.

You're probably right about being able to specify all of the pen colors (black, white, grey, and highlight). Do you think it makes more sense to have separate command line...

Okay, it looks like there are a few options for color parsing: * [matplotlib](https://matplotlib.org/stable/api/colors_api.html) - Crazy number of input formats, including XKCD colors. Drawback: matplotlib is kind of a heavy...

I went with the colour library for this and put in the other changes. The CLI now has four different flags for the pen colors (plus a couple variant spellings)....

I'd be happy with that UI change as a workaround.