[Tex/LaTex] Customize \tcblower appearance in tcolorbox

beamertcolorbox

I'm using boxes made with tcolorbox in my beamer presentation, using the beamer skin provided by the package. When the box is split in two parts with the \tcblower command, the lower part looks "disconnected" from the upper, while I'd like to hide the graphical difference.

Here is a code sample:

\documentclass{beamer}
\usepackage{tcolorbox}
\tcbuselibrary{skins} 

\begin{document}
\begin{frame}
\begin{tcolorbox}[width=2cm,skin=beamer,boxrule=0pt,after=]
   test
   \tcblower
   test
\end{tcolorbox}
\begin{tcolorbox}[width=2cm,skin=beamer,boxrule=0pt,before=]
   test

   test
\end{tcolorbox} 
\end{frame}
\end{document}

I'd like the first box to look exactly like the second, but at the same time I'd like to keep the ability to specify different properties for the two parts like different alignment, font size, etc.

What I want is to hide the separation between the two parts just from a graphical point of view.

I searched the docs but can't seems to find any clue about this.

Best Answer

May I assist with a second answer? It removes the segmentation but keeps the 'beamerish' look also for boxes with title. For demonstration, I added a third box with a title and a shrinked space between upper and lower part which you may prefer. My examples also contain a shadow which you can remove by adding the option no shadow.

\documentclass{beamer}
\usepackage{tcolorbox}
\tcbuselibrary{skins}

\makeatletter
\tcbset{beamer without segmentation/.style={%
  beamer,segmentation code=,
  interior titled code={{\tcb@spec{beamer@color}\tcb@drawwithtitle@path}\tcb@drawspec@T},
  interior code={{\tcb@spec{beamer@color}\tcb@drawwithouttitle@path}}}}
\makeatother

\begin{document}
\begin{frame}
\tcbset{colframe=blue!40!black,colback=blue!20!white}

\begin{tcolorbox}[beamer without segmentation,width=2cm,nobeforeafter]
   test
   \tcblower
   test
\end{tcolorbox}
%
\begin{tcolorbox}[beamer,width=2cm,nobeforeafter]
   test

   test
\end{tcolorbox}
%
\begin{tcolorbox}[beamer without segmentation,width=3cm,nobeforeafter,
  title=My Title,middle=1pt]
   test
   \tcblower
   test
\end{tcolorbox}

\end{frame}
\end{document}

enter image description here

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