Trait Theme 

pub trait Theme {
    // Required methods
    fn fg(&self, color: &str, text: &str) -> String;
    fn bg(&self, color: &str, text: &str) -> String;
    fn bold(&self, text: &str) -> String;
    fn italic(&self, text: &str) -> String;
    fn inverse(&self, text: &str) -> String;

    // Provided methods
    fn fg_key(&self, key: ThemeKey, text: &str) -> String { ... }
    fn bg_key(&self, key: ThemeKey, text: &str) -> String { ... }
    fn fg_ansi(&self, _color: &str) -> &str { ... }
    fn fg_ansi_key(&self, key: ThemeKey) -> &str { ... }
}

Theme trait for components that need color styling.

Implementations provide foreground and background color functions that take text and return ANSI-styled strings.

Required Methods

fn fg(&self, color: &str, text: &str) -> String

Apply a foreground color to text. color is a color name (e.g., “accent”, “text”, “success”, “error”, “muted”).

fn bg(&self, color: &str, text: &str) -> String

Apply a background color to text.

fn bold(&self, text: &str) -> String

Apply bold styling.

fn italic(&self, text: &str) -> String

Apply italic styling (used for thinking blocks, matching pi).

fn inverse(&self, text: &str) -> String

Apply reverse/inverse video styling (used for intra-line diff highlighting).

Provided Methods

fn fg_key(&self, key: ThemeKey, text: &str) -> String

Apply a foreground color from a ThemeKey.

fn bg_key(&self, key: ThemeKey, text: &str) -> String

Apply a background color from a ThemeKey.

fn fg_ansi(&self, _color: &str) -> &str

Return the ANSI escape code for a named color (without text). Default implementation returns empty string — override in concrete themes.

fn fg_ansi_key(&self, key: ThemeKey) -> &str

Return the ANSI escape code for a ThemeKey color (without text).

Dyn Compatibility

This trait is dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety".

Implementors

impl Theme for NoopTheme

impl Theme for RabTheme