ouble</span>
          <span class="name ">textScaleFactor</span>
          <div class="features">final</div>
        </section>
        <section class="desc markdown">
          <p>The number of font pixels for each logical pixel.</p>
<p>For example, if the text scale factor is 1.5, text will be 50% larger than
the specified font size.</p>
<p>The value given to the constructor as textScaleFactor. If null, will
use the <code>MediaQueryData.textScaleFactor</code> obtained from the ambient
<code>MediaQuery</c