update windows.tex

diff --git a/parts/Windows.tex b/parts/Windows.tex
index 5c94cd9dd0f96ed8fdd834f12d71efd2b0d34f47..d17c830e1ae4b751d565d82765eba535ae6da93f 100644 (file)
--- a/parts/Windows.tex
+++ b/parts/Windows.tex
@@ -560,7 +560,7 @@ The Format shows a large 5204x3468 video and the box at the arrow shows x 0.82 s
         Based on what compositing control is active, the toggle button will activate or deactivate the
         appropriate control dialog box. Controls with dialog boxes are: Edit mask, Camera and Projector
         automation, Crop control, and Get color.
-    \item[Safe regions tool]  draws the safe regions in the video output. This does not affect the rendered output
+    \item[Safe regions tool]  draws the safe regions in the video output. The largest (external) square is called \textit{action safe overlay}; the smallest internal square is called \textit{title safe overlay}. They are especially useful if the destination is the TV. This does not affect the rendered output
 \end{description}
 
 \subsection{Compositing}%