BUTTON_SIZE: {
    readonly extra_small: "\u30A8\u30AF\u30B9\u30C8\u30E9 \u30B9\u30E2\u30FC\u30EB";
    readonly small: "\u30B9\u30E2\u30FC\u30EB";
    readonly medium: "\u30DF\u30C7\u30A3\u30A2\u30E0";
    readonly large: "\u30E9\u30FC\u30B8";
    readonly extra_large: "\u30A8\u30AF\u30B9\u30C8\u30E9 \u30E9\u30FC\u30B8";
}