+\subsection{Mirror}%
+\label{sub:mirror}
+\index{Mirror}
+
+Mirror does more than simply flip (or reflect) the frame. It divides the frame into two vertical and/or horizontal half-planes, allowing them to be translated and oriented to achieve complex reflections and compositions, which can be reminiscent of kaleidoscope.
+
+An example of horizontal + vertical reflection without Swap nor shifting of the center of reflection is shown in the figure~\ref{fig:mirror}
+
+\begin{figure}[htpb]
+ \centering
+ \includegraphics[width=0.9\linewidth]{mirror.png}
+ \caption{mirror plugin}
+ \label{fig:mirror}
+\end{figure}
+
+\begin{description}
+ \item[Horizontal:] composes a reflection of the right half-plane joined to the left half-plane. The axis of reflection is central and vertical (Reflection Center). It can be used together with Vertical to have 4 half-planes of reflection.
+ \item[Swap LEFT-RIGHT side:] Swaps the two horizontal reflection half-planes, reversing their orientation. If this option is enabled, Enable Reflection Center is disabled.
+ \item[Vertical:] composes a reflection of the top half-plane joined to the bottom half-plane. The axis of reflection is central and horizontal (Reflection Center). It can be used together with Horizontal to have 4 half-planes of reflection.
+ \item[Swap TOP-BOTTOM side:] Swaps the two vertical reflection half-planes, reversing their orientation. If this option is enabled, Enable Reflection Center is disabled.
+ \item[Enable Reflection Center:] allows shifting the half-plane along the X-axis and/or along the Y-axis, relative to the Reflection Center. You can enter the percentage value or act on the slider for a visual adjustment. Checking this option excludes the use of swap functions.
+ \item[Reset] returns all values to the initial conditions, that is with only the Horizontal button enabled.
+\end{description}
+