Struct ThemeVariant 

#[non_exhaustive]
pub struct ThemeVariant {
    pub colors: ThemeColors,
    pub fonts: ThemeFonts,
    pub geometry: ThemeGeometry,
    pub spacing: ThemeSpacing,
    pub widget_metrics: Option<WidgetMetrics>,
    pub icon_set: Option<String>,
}

A single light or dark theme variant containing all visual properties.

Composes colors, fonts, geometry, and spacing into one coherent set. Empty sub-structs are omitted from serialization to keep TOML files clean.

Examples

use native_theme::{ThemeVariant, Rgba};

let mut variant = ThemeVariant::default();
variant.colors.accent = Some(Rgba::rgb(0, 120, 215));
variant.fonts.family = Some("Inter".into());
assert!(!variant.is_empty());

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.

colors: ThemeColors

fonts: ThemeFonts

geometry: ThemeGeometry

spacing: ThemeSpacing

widget_metrics: Option<WidgetMetrics>

Per-widget sizing and spacing metrics.

Optional because not all themes or presets provide widget metrics. When merging, if both base and overlay have widget metrics they are merged recursively; if only the overlay has them they are cloned.

icon_set: Option<String>

Icon set / naming convention for this variant (e.g., “sf-symbols”, “freedesktop”). When None, resolved at runtime via system_icon_set().

Implementations

impl ThemeVariant

pub fn merge(&mut self, overlay: &Self)

Merge an overlay into this value. Some fields in the overlay replace the corresponding fields in self; None fields are left unchanged. Nested structs are merged recursively.

pub fn is_empty(&self) -> bool

Returns true if all fields are at their default (None/empty) state.

Trait Implementations

impl Clone for ThemeVariant

fn clone(&self) -> ThemeVariant

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ThemeVariant

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

Formats the value using the given formatter.

impl Default for ThemeVariant

fn default() -> ThemeVariant

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for ThemeVariant

where ThemeVariant: Default,

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl PartialEq for ThemeVariant

fn eq(&self, other: &ThemeVariant) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Serialize for ThemeVariant

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for ThemeVariant