/** @language english
 * <p>When setting up the full screen, you need to set the <a href="LStageScaleMode.html">LGlobal.stageScale</a>first.</p>
 * <p>Next, call the <a href="LGlobal.html#method_screen">LSystem.screen(LStage.FULL_SCREEN);</a></p>
 * <p>※On mobile web page, must add this meta tag to the head tag.</p>
 * <pre class="code prettyprint prettyprinted"><code><span class="tag">&lt;meta</span><span class="pln"> </span><span class="atn">name</span><span class="pun">=</span><span class="atv">"viewport"</span><span class="pln"> </span><span class="atn">content</span><span class="pun">=</span><span class="atv">"width=device-width,initial-scale=1.0,minimum-scale=1.0,maximum-scale=1.0,user-scalable=no"</span><span class="tag">&gt;</span></code></pre>
 * @class Full Screnn Setting
 * @since 1.6.0
 * @public
 */