Feature idea... ability to choose > and < high and low values and coordinate them with colors, so you could set it if AFR is greater than 16:1 then the text is colored to whatever you choose, lets say red. and then if it dropped below 12:1 it would go, lets say we choose... Blue.
And allow you to map colors and ranges to all the gauges.
One more idea, a big "Open Loop/Closed Loop" fueling indicator.