/** The legacy -> updated CSS variable prefix pairs */
export declare const PREFIX_MIGRATIONS: readonly [readonly ["--theme-", "--scalar-"], readonly ["--sidebar-", "--scalar-sidebar-"]];
export declare const LEGACY_PREFIXES: ("--theme-" | "--sidebar-")[];
/**
 * Checks a style string for legacy theme variables and updated them to the new theme variables
 *
 * @param styles the style string to be checked for legacy theme variables and updated
 */
export declare function migrateThemeVariables(styles: string): string;
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