Gauge Style Chart

[djbusby]

Requesting a feature to have a gauge style chart, showing one or more values along the arc.
The zero-value on the left, the 100 value on the right.
Showing values --start:0 --size:0.90 would make an arc that is 90% of the full arc.
And one could have --start:0 --size:0.20 and then --start:20; --size:20 and have a first section of color-a and a second section of color-b.

I'll give you (or someone) $100 USD (via PayPal? BTC?, tell me) for this feature; even as "beta" quality.