/**
 * File type categories for thumbnail card filetype display
 */
export type FileTypeCategory = 'archive' | 'code' | 'document' | 'image' | 'media' | 'system';
/**
 * Mapping of file extensions to their corresponding category
 * Extensions not in this list will default to 'default' styling
 * Extensions list are defined in Figma.
 */
export declare const fileExtensionToCategory: Record<string, FileTypeCategory>;
/**
 * Get the file type category for a given file extension
 * @param extension - File extension (with or without leading dot)
 * @returns The file type category, or undefined if not in whitelist
 */
export declare function getFileTypeCategory(extension: string): FileTypeCategory | undefined;