When the vertical stretch is equal to the given final state, it goes back to its initial state and vice versa.</dd>
            <dt>
              class <a href="classbn_1_1bgs__mosaic__vertical__stretch__toggle__action.html" class="m-doc">bn::bgs_mosaic_vertical_stretch_toggle_action</a>
            </dt>
            <dd>Changes the vertical stretch of the mosaic applied to the backgrounds when the action is updated a given number of times.</dd>
            <dt>
              class <a href="classbn_1_1bgs_