Color in equations

Test 1:

$${\color{#0271AE}{\int dx e^-x}}$$ 

yields

\[ {\color{#0271AE}{\int dx e^-x}} \]

Test 2:

$$(x={\color{#DC2830}{c_1}} \cdot {\color{#0271AE}{x_1}} + {\color{#DC2830}{c_2}} \cdot {\color{#0271AE}{x_2}})$$

yields

\[ (x={\color{#DC2830}{c_1}} \cdot {\color{#0271AE}{x_1}} + {\color{#DC2830}{c_2}} \cdot {\color{#0271AE}{x_2}}) \]

Test macro:

$$
A = \bmat{} 1 & 1 \\ 2 & 1\\ 3 & 2 \emat{},\ b=\bmat{} 2\\ 3 \\ 4\emat{},\ \gamma = 0.5
$$

yields

\[\begin{split} A = \bmat{} 1 & 1 \\ 2 & 1\\ 3 & 2 \emat{},\ b=\bmat{} 2\\ 3 \\ 4\emat{},\ \gamma = 0.5 \end{split}\]

test sphinx shortcut for color

$$\bered{\int dx e^-x}$$

yields

\[ \bered{\int dx e^-x} \]