effects
backdropContrast
Pushes the backdrop away from (above 1) or toward (below 1) mid-grey; flattening it to a uniform tone keeps overlaid text legible.
import { backdropContrast } from "@sdxc/u/effects";Quick reference
Every documented call, beside the CSS it emits.
| Call | CSS |
|---|---|
u.backdropContrast() | css({ "--ui-backdrop-contrast": "1.25", backdropFilter: "... contrast(var(--ui-backdrop-contrast, 1)) ...", WebkitBackdropFilter: "... contrast(var(--ui-backdrop-contrast, 1)) ..." }) |
u.transparencySafe(u.backdropContrast(0.75)) | css({ "@media (prefers-reduced-transparency: no-preference)": { "--ui-backdrop-contrast": "0.75", backdropFilter: "...", WebkitBackdropFilter: "..." } }) |
Using a custom value
Every scale argument also takes a raw CSS value, which passes through untouched.
u.backdropContrast()Applying on a state
Wrap the call in a state utility to scope it to one selector.
u.hover(u.backdropContrast())Responsive design
Wrap the call in a container query to scope it to one width.
u.at("md", u.backdropContrast())Customizing the theme
The custom properties this utility reads, which a theme redefines.
| Variable |
|---|
--ui-backdrop-contrast |
Signature
u.backdropContrast(value?: number | (string & {}))