</span>, </span><span class="field"><span class="type-annotation"><a href="https://api.flutter.dev/flutter/widgets/Icon-class.html">Icon</a></span> <span class="field-name">icon</span>, </span><span class="field"><span class="type-annotation"><a href="https://api.flutter.dev/flutter/dart-core/String-class.html">String</a></span> <span class="field-name">label</span>, </span><span class="field"><span class="type-annotation"><a href="https://api.flutter.dev/flutter/dart-core/String-class.html">String</a></spa