complement_slice doesn't seem correct

[bryanhanson]

Hello Charlotte, first, a big thanks for this package. It has been a big help to me.

On the function complement_slice, I don't think it is giving the correct results. The labels on the color swatches appear to be correct, but the colors are not. Also, the plot includes a legend which is not necessary and exceeds the space available (though maybe it would not if the colors were correct). complement_slice("5B") shows the issue well enough.

Thank you. Bryan