Proper color scaling and handling Garmin Exports

[wbste]

Hey, awesome project! A few quick ones...

1. Adding something like --special-distance 5 --special-distance2 10 --special-color yellow --special-color2 red to the end doesn't do what I think it would. Let's say I average 1 to 20 km activities. I would assume 1 km things would be blue, transition to yellow once I got to 5 km, then at 10 it'd be red, and beyond that...something else. My testing doesn't show that; am I mis-reading the info? Or does it rely on the strava file?
2. I exported my garmin fit files to gpx. From my understanding to get activities read they need to be in a strava file? Or can it read it from the gpx xml? If it's strava what should that file look like? I can make one and map it to the filename.

Thanks again!

EDIT:

Nevermind, figured out special colors are for tracks marked as special 😉 I guess is there still a way to dynamically scale the color based off of distance?