native-theme-gpui

gpui + gpui-component toolkit connector for native-theme.

Maps native_theme::NativeTheme data to gpui-component's theming system, producing a fully configured Theme with correct colors, fonts, geometry, and icons for all gpui-component widgets.

Usage

Add both crates to your Cargo.toml:

[dependencies]
native-theme = "0.3"
native-theme-gpui = "0.3"

Then create a gpui-component theme from any native-theme preset or OS theme:

use native_theme::NativeTheme;
use native_theme_gpui::{pick_variant, to_theme};

// Load a preset
let nt = NativeTheme::preset("dracula").unwrap();

// Pick light or dark variant (with cross-fallback)
let is_dark = true;
if let Some(variant) = pick_variant(&nt, is_dark) {
    let theme = to_theme(variant, "My App", is_dark);
    // Use `theme` in your gpui-component application
}

Or read the OS theme at runtime:

use native_theme::{from_system, NativeTheme};
use native_theme_gpui::{pick_variant, to_theme};

let nt = from_system().unwrap_or_else(|_| NativeTheme::preset("default").unwrap());
let is_dark = true;
if let Some(variant) = pick_variant(&nt, is_dark) {
    let theme = to_theme(variant, "System Theme", is_dark);
}

What Gets Mapped

The connector translates native-theme's 36 semantic color roles into gpui-component's 108-field ThemeColor struct. The mapping works in layers:

Direct mappings (~30 fields) -- background, foreground, accent, border, muted, input, ring, selection, link
Derived fields (~78 fields) -- hover/active states, chart colors, tab bar, sidebar, scrollbar, and other widget-specific colors are generated from the base roles via shade derivation and alpha blending

Fonts and geometry (family, size, radius, shadow) are mapped to gpui-component's ThemeConfig. Point sizes are converted to pixels (x96/72).

Icons

The connector maps native-theme's IconRole variants to gpui-component's IconName enum, covering 30 of 42 semantic roles (actions, navigation, status indicators, etc.).

It also provides reverse-mapping functions for loading icon assets from native-theme's icon bundles:

lucide_name_for_gpui_icon() -- maps gpui-component icon names to Lucide SVG filenames
material_name_for_gpui_icon() -- maps to Material Symbols icon names
freedesktop_name_for_gpui_icon() -- maps to FreeDesktop icon names (Linux)
to_image_source() -- converts native-theme IconData to gpui ImageSource

Modules

Module	Purpose
`colors`	Maps 36 semantic colors to 108 ThemeColor fields
`config`	Maps fonts and geometry to ThemeConfig
`derive`	Hover/active state color derivation helpers
`icons`	Icon role mapping and image source conversion

Example

Run the showcase widget gallery to explore all 17 presets interactively:

cargo run --example showcase

The showcase displays all gpui-component widgets (buttons, inputs, tables, charts, overlays, etc.) themed with native-theme presets, with live theme switching and a color map inspector.

License

Licensed under either of

at your option.