How To Change SettingsExpander Background Color ?

[OmerFarukAkyapak]

I cant change settings expander background color. Items background changes but expander's background dosnt change.

			<ui:SettingsExpander Header="Expander" Background="White">
				<ui:SettingsExpanderItem Content="Item" Background="Black">				
				</ui:SettingsExpanderItem>
			</ui:SettingsExpander>

[huseyinhamad]

Having the same problem

[OmerFarukAkyapak]

Just solved it. (researching the settings expander source codes)

I found the solution on this page: https://github.com/amwx/FluentAvalonia/blob/master/src/FluentAvalonia/Styling/ControlThemes/FAControls/SettingsExpander/SettingsExpanderStyles.axaml

Firstly create a resource dictionary like this :

<ResourceDictionary xmlns="https://github.com/avaloniaui"
                    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml">
	<ResourceDictionary.ThemeDictionaries>

		<!--Light Theme-->
		<ResourceDictionary x:Key='Light'>
		</ResourceDictionary>

		<!--Dark Theme-->
		<ResourceDictionary x:Key='Dark'>
			<SolidColorBrush x:Key='ExpanderHeaderBackground'>#1A1E29</SolidColorBrush>
			<SolidColorBrush x:Key='ControlFillColorSecondaryBrush'>#1A1E29</SolidColorBrush>
			<SolidColorBrush x:Key='ControlStrokeColorDefaultBrush'>#1A1E29</SolidColorBrush>
			<SolidColorBrush x:Key='ControlFillColorTertiaryBrush'>#1A1E29</SolidColorBrush>
		</ResourceDictionary>

	</ResourceDictionary.ThemeDictionaries>
</ResourceDictionary>

And then use like this :

<ui:SettingsExpander Header="Faruk" IsExpanded="True">

	<ui:SettingsExpander.Resources>
		<ResourceDictionary>
			<ResourceDictionary.MergedDictionaries>
				<ResourceInclude Source="/Styles/SettingsExpanderResource.axaml"/>
			</ResourceDictionary.MergedDictionaries>
		</ResourceDictionary>
	</ui:SettingsExpander.Resources>

	<ui:SettingsExpanderItem Content="Akyapak"/>
</ui:SettingsExpander>