Minimal range

Hello,

I want to create a number range slider to input optical corrections. This means a range going from -4 to 4.

The main problem is the plugin doesn’t accept negative numbers.

Ideally, I would also like the slider to be set on a neutral position, that is – if possible – to be seen on the 0, just in the middle.

Many thanks for this great plugin that is otherwise working perfectly 🙂