zed-industries/zed · error

failed to list theme assets

Error message

failed to list theme assets

What it means

load_bundled_themes panics when the asset registry cannot list the bundled 'themes/' assets. Since themes are embedded in the binary, failure means a corrupted build or asset-store initialization problem, not user configuration.

Source

Thrown at crates/theme_settings/src/theme_settings.rs:222

pub fn reload_theme(cx: &mut App) {
    let theme = configured_theme(cx);
    GlobalTheme::update_theme(cx, theme);
    cx.refresh_windows();
}

/// Reloads the current icon theme from settings.
pub fn reload_icon_theme(cx: &mut App) {
    let icon_theme = configured_icon_theme(cx);
    GlobalTheme::update_icon_theme(cx, icon_theme);
    cx.refresh_windows();
}

/// Loads the themes bundled with the Zed binary into the registry.
pub fn load_bundled_themes(registry: &ThemeRegistry) {
    let theme_paths = registry
        .assets()
        .list("themes/")
        .expect("failed to list theme assets")
        .into_iter()
        .filter(|path| path.ends_with(".json"));

    for path in theme_paths {
        let Some(theme) = registry.assets().load(&path).log_err().flatten() else {
            continue;
        };

        let Some(theme_family) = serde_json::from_slice(&theme)
            .with_context(|| format!("failed to parse theme at path \"{path}\""))
            .log_err()
        else {
            continue;
        };

        let refined = refine_theme_family(theme_family);
        registry.insert_theme_families([refined]);
    }

View on GitHub (pinned to f4178619ac)

Solutions

1. Check the asset embed/build packaging includes themes/
2. Log the underlying asset error and continue with an empty theme set
3. Verify ThemeRegistry asset store initialization order

When it happens

Trigger: Thrown at crates/theme_settings/src/theme_settings.rs:222 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of zed-industries/zed@f4178619ac (2026-08-20). Data as JSON: /api/errors/e2f2a5478a1ccfd4. Report an issue: GitHub.