/**
 * Canonical set of semantic theme token names shared by the app and extension
 * iframes. This is the single source of truth: `getThemeVars` bakes default
 * values for these into every iframe, and the host reads the *actual* computed
 * values for the same names to sync its live palette into embedded extensions
 * (see EmbeddedExtension). Custom properties can't be enumerated portably from
 * a computed style, so the names must be listed explicitly.
 */
export declare const THEME_VAR_NAMES: readonly ["--background", "--foreground", "--card", "--card-foreground", "--popover", "--popover-foreground", "--primary", "--primary-foreground", "--secondary", "--secondary-foreground", "--muted", "--muted-foreground", "--accent", "--accent-foreground", "--destructive", "--destructive-foreground", "--border", "--input", "--ring", "--radius", "--sidebar-background", "--sidebar-foreground", "--sidebar-primary", "--sidebar-primary-foreground", "--sidebar-accent", "--sidebar-accent-foreground", "--sidebar-border", "--sidebar-ring"];
export declare function getThemeVars(_isDark?: boolean): string;