颜色设置.md

$ {\color{Blue}x^2}+{\color{Brown}2x} -{\color{OliveGreen}1} $: {\color{Blue}x^2}+{\color{Brown}2x} -{\color{OliveGreen}1}

$ x_{\color{Maroon}1,2}=\frac{-b\pm\sqrt{{\color{Maroon}b^2-4ac}}}{2a} $: x_{\color{Maroon}1,2}=\frac{-b\pm\sqrt{{\color{Maroon}b^2-4ac}}}{2a}