t:ui</span> library </h1></div>

    <section class="desc markdown">
      <p>Built-in types and core primitives for a Flutter application.</p>
<p>To use, import <code>dart:ui</code>.</p>
<p>This library exposes the lowest-level services that Flutter frameworks use
to bootstrap applications, such as classes for driving the input, graphics
text, layout, and rendering subsystems.</p>
    </section>
    
    <section class="summary offset-anchor" id="classes">
      <h2>Classes</h2>

      <dl>
        <dt id=