https://blog.faceutil.com/2017/03/26/%ec%9d%b4%ed%81%b4%eb%a6%bd%ec%8a%a4-%ed%8c%94%eb%a0%88%ed%8a%b8eclipse-palette-%eb%8b%a4%ec%9a%b4%eb%a1%9c%eb%93%9c-%ec%83%89%ec%83%81%ec%b6%94%ec%b6%9c%ea%b8%b0-%d0%bb/