How can I style tkz-euclide points?

The tkz-euclide package lets you do things like

\begin{tikzpicture}
\tkzDefPoint(0,0){A} \tkzDefPoint(4,0){B} \tkzDefPoint(2,3){C}
\tkzDrawPoints(A,B,C)
\tkzDrawSegments(A,B B,C C,A)
\end{tikzpicture}


However, by default, the point style is filled with a semi-transparent black.* Using \tkzDrawPoints[fill=black] fixes this, but it would be nice to be able to style all the points to, by default, use a black fill.

What styles, TikZ or tkz-euclide, should I use to accomplish this?

* Note for posterity: It's not actually a semi-transparent black. Rather, it's a solid gray. Moving the \tkzDrawPoints command after the \tkzDrawSegments command makes this clear.

MWE:

\documentclass{standalone}
\usepackage{tikz}
\usepackage{tkz-euclide}
\begin{document}
\begin{tikzpicture}
\tkzDefPoint(0,0){A} \tkzDefPoint(4,0){B} \tkzDefPoint(2,3){C}
\tkzDrawPoints(A,B,C)  % want them filled
\tkzDrawSegments(A,B B,C C,A)
\end{tikzpicture}
\end{document}


You can use

\tkzSetUpPoint[<options>]


to customize the attributes for points. An example:

\documentclass{article}
\usepackage{tikz}
\usepackage{tkz-euclide}
\tkzSetUpPoint[fill=black]

\begin{document}
\begin{tikzpicture}
\tkzDefPoint(0,0){A} \tkzDefPoint(4,0){B} \tkzDefPoint(2,3){C}
\tkzDrawPoints(A,B,C)  % want them filled
\tkzDrawSegments(A,B B,C C,A)
\end{tikzpicture}
\end{document}