Until now, I have used mdframed to produced nice framed boxes. I recently discovered tcolorbox, and found that it has several advantages over mdframed. In my actual and future work I would prefer tcolorbox. Nevertheless, one nice thing in mdframed is the
\mdfsubtitle. You can divide a framed box into several "sections" with nice formatted titles, as seen in the picture (copied from the mdframed documentation):
My Question: is there a (more or less) simple way of having such subtitles with tcolorbox?