Unable to change the fill direction, always clockwise

[langy]

Firstly, I'd like to say this is an incredible library and offers almost everything I could want from a circular slider, so thank you @mzusin for sharing this with the world!

However I believe it's missing one key feature, which is being able to set the fill path direction. Unless I'm missing something, it can only fill in a clockwise manner. This prevents me from implementing it in such a way where 0 is on the left (180deg) and 100 is on the right (0deg), whilst having the track at the bottom arc, rather than the top.

An example of the design I'm trying to achieve can be seen below.