Struct Keyframes 

pub struct Keyframes { /* private fields */ }

A looping keyframe timeline: style stops at fractional times across one period, sampled from the frame clock every frame. Built for ambient motion (pulses, shimmers, breathing); one-shot state changes belong to Transition. With reduced motion the first stop is pinned, keeping headless renders deterministic.

Implementations

impl Keyframes

pub fn new(duration_ms: f32) -> Keyframes

A timeline lasting duration_ms per cycle (looped).

pub fn stop(self, at: f32, f: impl Fn(Style) -> Style + 'static) -> Keyframes

Adds a stop at fraction at (clamped to 0..=1) transforming the element’s resolved base style. For a seamless loop, make the styles at 0 and 1 match.

pub fn themed_stop( self, at: f32, f: impl Fn(&Theme, Style) -> Style + 'static, ) -> Keyframes

A theme-aware stop, for keyframes that color through tokens.

pub fn ease(self, easing: CubicBezier) -> Keyframes

Per-segment easing (standard ease by default).