using custom colors in http://latex2png.com/

latex_custom_colors.txt

\definecolor{myblue}{HTML}{4472C4}
\newcommand{\myp}{\textcolor{myblue}{p}}
\newcommand{\myP}{\textcolor{myblue}{P}}
\definecolor{mypurp}{HTML}{7030A0}
\newcommand{\mypt}{\textcolor{mypurp}{\tilde{p}}}
\newcommand{\myPT}{\textcolor{mypurp}{\tilde{P}}}
\definecolor{myorange}{HTML}{DF8344}
\newcommand{\myq}{\textcolor{myorange}{q}}
\definecolor{mybrown}{HTML}{843C0C}
\definecolor{mywhite}{HTML}{FFFFFF}
\definecolor{myred}{HTML}{ED4125}
\min_{\tilde{S} \in \mathcal{D}_+} \textcolor{myred}{ D(  \myP  \| \myPT  ) }