Function spectrum_width_scale 

pub fn spectrum_width_scale() -> DiscreteColorScale

Returns a color scale for spectrum width data.

This sequential scale ranges from cool colors (low turbulence) to warm colors (high turbulence). Range: 0 to 30 m/s.

Width (m/s)	Color	Meaning
0-4	Gray	Very low turbulence
4-8	Blue	Low turbulence
8-12	Cyan	Light turbulence
12-16	Green	Moderate turbulence
16-20	Yellow	Moderate-high turbulence
20-25	Orange	High turbulence
25-30	Red	Very high turbulence