/**
 * Transforms "slugified" TOML filenames to prettier format.
 * Removes special characters and only keeps alphanumeric characters and numbers.
 * Detects and uppercases Roman numerals (I-X).
 *
 * @example
 * unslugify("monokai_pro.toml") // "Monokai Pro"
 * unslugify("moonlight_ii_vscode.toml") // "Moonlight II Vscode"
 */
export declare function unslugify(filename: string): string;
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