---
title: "DroppyRingArc, DroppyKit"
description: "The arc Droppy's System Stats rings are drawn with (DroppyKit 1.23.0): a quiet track, the value as a rounded arc from its darker tail to its bright head, quantized to half a percent so a sample that moves nothing redraws nothing, and never animated."
canonical: "https://getdroppy.app/docs/droppykit/api/droppy-ring-arc"
last-updated: "2026-09-09"
---

# DroppyRingArc

The arc Droppy's System Stats rings are drawn with (DroppyKit 1.23.0): a quiet track, the value as a rounded arc from its darker tail to its bright head, quantized to half a percent so a sample that moves nothing redraws nothing, and never animated.

`@MainActor struct DroppyRingArc`

The arc Droppy's System Stats rings are drawn with (DroppyKit 1.23.0): a quiet track, the value as a rounded arc from its darker tail to its bright head, quantized to half a percent so a sample that moves nothing redraws nothing, and never animated. [`ShelfWidgetRing`](https://getdroppy.app/docs/droppykit/api/shelf-widget-ring) is the ring a widget draws; use this only for a ring of your own size.

Available from DroppyKit 1.23.0.

## Initializers

### init(progress:lineWidth:track:start:end:)

`@MainActor init(progress: Double?, lineWidth: CGFloat, track: Color, start: Color, end: Color)`

Creates the arc.

- Parameters:
- progress: 0 through 1, or `nil` for the track alone.
- lineWidth: The stroke.
- track: The track's colour.
- start: The tail's colour.
- end: The head's colour.

## Properties

### body

`@MainActor var body: some View { get }`