[ @sdxc/u/responsive ]

transparencyReduce

Sugar over media("(prefers-reduced-transparency: reduce)", input).

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import { transparencyReduce } from "@sdxc/u/responsive";

Quick reference

Every documented call, beside the CSS it emits.

Call	CSS
`u.transparencyReduce(u.bg())`	`css({ "@media (prefers-reduced-transparency: reduce)": { backgroundColor: "var(--ui-bg, Canvas)" } })`

Examples

Basic example

Use transparencyReduce(...) to apply utilities when the reader asks for less transparency, like a solid background behind a frosted pane. Turn on Reduce transparency in your system's accessibility settings to see the pane turn solid:

Frosted glass

<div mix={[...]}>
	<div mix={[backdropBlur("lg"), transparencyReduce(bg("color.neutral.900")), ...]}>
		Frosted glass
	</div>
</div>

Applying on a state

Wrap the call in a state utility to scope it to one selector.

u.hover(u.transparencyReduce(u.bg()))

Customizing your theme

Customizing colors

Define a palette as --ui-color-{name}-{50..950} and map a tone onto it with the --ui-{tone}-* variables, the way theme.css maps the built-in ones:

:root {
	--ui-color-info-50: oklch(0.97 0.02 230);
	--ui-color-info-200: oklch(0.88 0.06 230);
	--ui-color-info-500: oklch(0.62 0.16 230);
	--ui-color-info-600: oklch(0.52 0.18 230);
	--ui-color-info-900: oklch(0.3 0.1 230);

	--ui-info-bg-tint: var(--ui-color-info-50);
	--ui-info-bg-solid: var(--ui-color-info-600);
	--ui-info-fg: var(--ui-color-info-600);
	--ui-info-fg-muted: var(--ui-color-info-500);
	--ui-info-fg-emphasis: var(--ui-color-info-900);
	--ui-info-fg-on-solid: white;
	--ui-info-border: var(--ui-color-info-200);
	--ui-info-border-strong: var(--ui-color-info-600);
	--ui-info-ring: var(--ui-color-info-500);
}

declare module "@sdxc/u" {
	interface ColorPalettes {
		info: true;
	}
	interface SemanticTones {
		info: true;
	}
}

The new name is then accepted wherever the scale is:

bg("info")

Signature

u.transparencyReduce(input: UtilityInput<Node>)