This control is intended to replicate/simulate the level indicatoron an audio mixing board. These indicators are usually segmented/stacked LEDs, with several colors to indicate thresholds.This control replicates that look, using Quartz drawing primitives,and auto-adjusts to horizontal or vertical orientation. Additionally, the colors, number of bars, peak hold, and other items are easily customizable.
✔ Sources: https://github.com/ChiefPilot/F3BarGauge
This seems like it would be useful for our sound system needs. We need to provide our own sound mixer for the event and this is very portable and convenient and the other three members of the quartet have iphones. This is very much a great option for the event!