Color transition bug when using gray color tones

[Mitchizuky]

Hello,

i use this library for a while and dont have any issues so far so all the credits for it. Recently i came across a bug regarding color transition when togling on-off.

When using gray color tones the color always transitions to a pinkish tone :).

Steps to reproduce:

circleColorOff="gray"
circleColorOn="green"

outcome:

I think the cause for this is the inputRange from background color interpolation. inputRange should be [0,1] instead of [0.5,1].

[hyochan]

Thanks for issuing! You may try 2.2.0!