Usage
base picks the tier the label rests at between sweeps; the band always lifts it to the default foreground.ShimmerBase.Dim (default): a loading placeholder. The label dims to the disabled tier, which is under the AA text floor, so use it only when the surrounding UI carries the meaning.ShimmerBase.Readable: the label rests at the subtle tier, the one a resting label uses, so it keeps AA text contrast at every point of the sweep. Use it for a label someone reads, such as Reasoning's "Thinking…". The band lifts it less than Dim does.span, so Shimmer is valid inside a paragraph and in running text.Foreground.Subtle.icon is a Glyph. It stays when active is false, so toggling active moves nothing.type is a TextType. The default is body (13px).linear infinite period of eight --duration-slower steps (4 seconds), shared by the label and the glyph. The band is 1.2 label widths wide: it travels a tile three label widths long, so the label rests at the dim base between passes. It moves along the inline axis, so a right-to-left label sweeps from its own start. Chromatic captures the first frame, with the band centered on the label.prefers-contrast: more, and under forced-colors: active.