Struct Theme 

#[non_exhaustive]
pub struct Theme {
    pub id: SharedString,
    pub appearance: Appearance,
    pub colors: ThemeColors,
    pub layout: LayoutTheme,
    pub components: ComponentThemes,
}

A complete HeroUI v3 theme: semantic colors plus layout tokens.

Fields (Non-exhaustive)

Non-exhaustive structs could have additional fields added in future. Therefore, non-exhaustive structs cannot be constructed in external crates using the traditional Struct { .. } syntax; cannot be matched against without a wildcard ..; and struct update syntax will not work.

id: SharedString

Unique id the theme is registered and activated under.

appearance: Appearance

Whether the theme is light or dark.

colors: ThemeColors

Semantic color tokens.

layout: LayoutTheme

Layout tokens: radii, border width, shadows, opacities and timings.

components: ComponentThemes

Typed component defaults and named recipes.

Implementations

impl Theme

pub fn light() -> Self

The default light theme.

pub fn dark() -> Self

The default dark theme.

pub fn builder(id: impl Into<SharedString>, base: Theme) -> ThemeBuilder

Starts a custom theme extending base — the equivalent of overriding CSS variables under a [data-theme] selector.

A JSON document of the same sparse overrides lives behind this crate’s serde feature (ThemeDocument): it applies through this builder so derived hover / soft mixes stay live.

pub fn is_dark(&self) -> bool

Whether this theme’s appearance is Appearance::Dark.

Trait Implementations

impl Clone for Theme

fn clone(&self) -> Self

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for Theme

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.