;light-yellow&#39;).setAlpha(0.5) }).show();
console.build({ backgroundColor: &#39;#80FFFFE0&#39; }).show(); /* 效果同上. */

/* 透明度也可使用 backgroundAlpha 单独设置. */
console.build({
    backgroundColor: &#39;light-yellow&#39;,
    backgroundAlpha: 0.5,
}).show();
</code></pre>
<h2>[p?] backgroundAlpha<span><a class="mark" href="#consolebuildoptionstype_p_backgroundalpha" id="consolebuildoptionstype_p_backgroundalpha">#</a></span></h2>
<div class="signature"><ul>
<li>{ <span class="type