https://itmanual.net/colorscripter-%ec%82%ac%ec%9a%a9%eb%b2%95-%ec%86%8c%ec%8a%a4%ec%bd%94%eb%93%9c-%eb%b8%94%eb%a1%9c%ea%b7%b8-%ec%98%ac%eb%a6%ac%ea%b8%b0/