slope gradient values?

When locus colors a track with a gradient, I believe it has set numeric values in the software to represent actual slope numbers.

Having ridden this track (Ophir pass in CO) and went down 6 times in 1 mile I know it intimately as I lay there in the rocks gasping for air at 11,000 feet.

I do not believe you can enter these values.

Here is my guess as to the colors of the slope:

below 30 degrees=base color, oranges

30=light red

35=red

40=dark red

Does anyone know the correct values used?