a widget will receive for a given width). When grouping widgets that
trade height for width in mode %GTK_SIZE_GROUP_VERTICAL or %GTK_SIZE_GROUP_BOTH:
the height for the minimum width will be the requested height for all
-widgets in the group.
+widgets in the group. The same is of course true when horizontally grouping
+width for height widgets.
+</para>
+<para>
+Widgets that trade height-for-width should set a reasonably large minimum width
+by way of GtkLabel:width-chars for instance. Widgets with static sizes as well
+as widgets that grow (such as ellipsizing text) need no such considerations.
</para>
<refsect2 id="GtkSizeGroup-BUILDER-UI">
<title>GtkSizeGroup as GtkBuildable</title>