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
Via Vincent Demay