The following two pictures should produce the same result but, since version 3.0, they don't. A similar problem happens with the newer Latex tip from arrows.meta.
\documentclass{article}
\usepackage{tikz}
\begin{document}
\begin{tikzpicture}
\draw[preaction={draw=red}] (0,0) -- (1,0);
\draw[-latex] (0,-1) -- (1,-1);
\end{tikzpicture}
\begin{tikzpicture}
\draw[preaction={color=red}] (0,0) -- (1,0);
\draw[-latex] (0,-1) -- (1,-1);
\end{tikzpicture}
\end{document}
Cannot reproduce, mark as fixed.
For me also the two pictures give the same result (everything in black).