Increase parskip in tcblisting output

Question

How to increase the \parskip in the output of a tcblisting, i.e. the vertical space between the black squares in the following example?

Neither the \parskip of the surrounding text nor the spacing of the displayed code should be affected and no additional code should be shown.

(alternatively: changing the linespread or anything else to increase the vertical distance is also fine)

MWE:

\documentclass{scrartcl}

\usepackage{tikz}
\usepackage[most]{tcolorbox}

\usepackage{lipsum}

\tcbset{%
    sidebyside,
    listing options={language={[latex]TeX}},
    center lower,
    righthand width=3cm
}

\begin{document}

\lipsum[2]

\begin{tcblisting}{title={test}}
\begin{tikzpicture}
    \fill (0,0) rectangle (1,1);
\end{tikzpicture}

\begin{tikzpicture}
    \fill (0,0) rectangle (1,1);
\end{tikzpicture}
\end{tcblisting}

\lipsum[2]

\end{document}

Current output:

Desired output:

Answer 1

Use before lower={\setlength{\parskip}{10pt}} here since the output of the displayed code is displayed in the lower box, which is here sidebyside, replace the value of 10pt at will.

\documentclass{scrartcl}

\usepackage{tikz}
\usepackage[most]{tcolorbox}

\usepackage{lipsum}

\tcbset{%
    sidebyside,
    listing options={language={[latex]TeX}},
    center lower,
    righthand width=3cm,
    before lower={\setlength{\parskip}{50pt}}
}

\begin{document}

\lipsum[2]

\begin{tcblisting}{title={test}}
\begin{tikzpicture}
    \fill (0,0) rectangle (1,1);
\end{tikzpicture}

\begin{tikzpicture}
    \fill (0,0) rectangle (1,1);
\end{tikzpicture}
\end{tcblisting}

\lipsum[2]

\end{document}