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Update IconButton.iconSize documentation (#137741)

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fixes https://github.com/flutter/flutter/issues/137580

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This PR is just to add two sentences for `IconButton.iconSize`'s documentation.
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Qun Cheng 2023-11-02 10:24:08 -07:00 committed by GitHub
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packages/flutter/lib/src/material/icon_button.dart
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@ -310,6 +310,9 @@ class IconButton extends StatelessWidget {
/// [Icon.size] instead, then the [IconButton] would default to 24.0 and then
/// the [Icon] itself would likely get clipped.
///
/// This property is only used when [icon] is or contains an [Icon] widget. It will be
/// ignored if other widgets are used, such as an [Image].
///
/// If [ThemeData.useMaterial3] is set to true and this is null, the size of the
/// [IconButton] would default to 24.0. The size given here is passed down to the
/// [ButtonStyle.iconSize] property.