I was wondering whether there's any way to have smartdiagram do bubbles with borders, e.g. black borders around both planet and satellites. Here's the code I've used trying, though to no avail. Any help much appreciated.
\documentclass[11 pt, a4paper]{article}
\usepackage{smartdiagram}
\begin{document}
\smartdiagramset{border color = black,
uniform color list=blue!30 for 8 items,
bubble center node color = blue!50,
bubble center node size=5cm,
bubble node size=3cm
}
\smartdiagram[bubble diagram]{A,
B, C, D, E, F, G, H, I}
\end{document}

