Struct Theme 

pub struct Theme {
    pub primary: Color,
    pub secondary: Color,
    pub bg: Color,
    pub fg: Color,
    pub muted: Color,
    pub border: Color,
    pub success: Color,
    pub warning: Color,
    pub error: Color,
    pub info: Color,
    pub surface: Color,
    pub highlight: Color,
}

A color palette for theming UI components.

Components reference these semantic colors rather than hard-coding values, allowing the entire UI to be restyled by swapping themes.

Fields

primary: Color

Primary accent color (buttons, active elements).

secondary: Color

Secondary accent color (less prominent elements).

bg: Color

Background color for the main content area.

fg: Color

Default foreground/text color.

muted: Color

Muted/dimmed text color.

border: Color

Border color for containers.

success: Color

Success state color.

warning: Color

Warning state color.

error: Color

Error/danger state color.

info: Color

Informational state color.

surface: Color

Surface color (cards, panels, elevated elements).

highlight: Color

Highlight/selection background.

Implementations

impl Theme

pub fn builtins() -> &'static [BuiltinTheme]

Return the list of built-in theme presets.

pub fn builtin(theme: BuiltinTheme) -> Self

Build one of the built-in theme presets.

pub fn from_builtin_name(name: &str) -> Option<Self>

Build a built-in theme from a configuration-friendly name.

pub fn roles() -> &'static [ThemeRole]

Return the list of stable semantic roles supported by every theme.

pub fn color(&self, role: ThemeRole) -> Color

Resolve a semantic role to a concrete color.

pub fn foreground_style(&self, role: ThemeRole) -> Style

Create a foreground-only style from a semantic role.

pub fn background_style(&self, role: ThemeRole) -> Style

Create a background-only style from a semantic role.

pub fn pair_style(&self, fg: ThemeRole, bg: ThemeRole) -> Style

Create a style from separate foreground and background roles.

pub fn selection_style(&self) -> Style

Standard selected-row style for theme-aware widgets.

pub fn surface_style(&self) -> Style

Standard elevated-surface style for panels and overlays.

pub fn dark() -> Self

Dark theme — light text on dark background.

pub fn light() -> Self

Light theme — dark text on light background.

pub fn catppuccin() -> Self

Catppuccin Mocha-inspired theme.

pub fn tokyo_night() -> Self

Tokyo Night-inspired theme.

Trait Implementations

impl Clone for Theme

fn clone(&self) -> Theme

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.

impl Default for Theme

fn default() -> Self

Returns the “default value” for a type.