Type '{ children: Element[]; title: string; backgroundColor: "#e91e63" | "#9c27b0" | "#2196f3" | "#00bcd4" | "#4caf50" | "#ffeb3b" | "#ff9800" | "#f44336" | "#9e9e9e"; count: number; indented: true; initOpen: true; }' is not assignable to type 'IntrinsicAttributes & { children: ReactNode; readonly indented?: boolean; readonly initOpen?: boolean; readonly title: ReactNode; readonly backgroundColor?: string; }'.