DefaultExpanderStyle not public #11005
Description
Describe the bug
When I construct a Style like this:
<StackPanel>
<StackPanel.Resources>
<Style x:Key="MyExpanderStyle"
BasedOn="{CustomResource DefaultExpanderStyle}"
TargetType="Expander">
<Setter Property="MinHeight" Value="16" />
<Setter Property="MinWidth" Value="36" />
<Setter Property="Padding" Value="0" />
</Style>
</StackPanel.Resources>
<Expander Content="Something"
Header="Test"
Style="{StaticResource MyExpanderStyle}" />
</StackPanel>
I get an exception, "Cannot find a Resource with the Name/Key DefaultExpanderStyle".
I have found the style defined in the generic.xaml:
<Style TargetType="controls:Expander" BasedOn="{StaticResource DefaultExpanderStyle}" />
<Style x:Key="DefaultExpanderStyle" TargetType="controls:Expander">
But it doesn't look like it's exposed?
Trying to override some specific resouce values, for example ExpanderMinHeight and ExpanderHeaderPadding does not work, but several of the other resources used in the Expander style works, for example ExpanderChevronButtonSize and ExpanderContentBackground.
Why is this important?
Because all other controls have default styles that are public.
Steps to reproduce the bug
Create a Style which is BasedOn DefaultExpanderStyle.
Actual behavior
No response
Expected behavior
No response
Screenshots
No response
NuGet package version
WinUI 3 - Windows App SDK 1.8.5: 1.8.260209005
Windows version
No response
Additional context
No response