of measurement for
a <a href="https://api.flutter.dev/flutter/dart-core/double-class.html">double</a> value.</li>
<li><code>PercentProperty</code>, which clamps a <a href="https://api.flutter.dev/flutter/dart-core/double-class.html">double</a> to between 0 and 1 and
formats it as a percentage.</li>
<li><code>IntProperty</code>, which supports specifying a unit of measurement for an
<a href="https://api.flutter.dev/flutter/dart-core/int-class.html">int</a> value.</li>
<li><code>FlagProperty</code>, which for