Show differential value in a + and - gauge with 0 center

[R3cycl0r]

I would love to use it as differential gauge meter, with 0 in the middle center, positive values on a side and negative on the other (that is already possible) but with something in the 0 that marks it and most important the "filling" of the graph should start from the center and going right or left as the value goes. I tryed also to look at the library itself but its not something to do in hours for someone who didn't know how the code works. And thanks for what's been already done!

[leifnel]

metoo

[lorenzfischer]

+1

[codingfrombavaria]

Same wish..
I realy like JustGage!

[hvoerman]

+1, to make something like this but with different lower and upper limits