Add icon button style
ADD
WalletWasabi.Fluent/Styles/IconButton.axaml
+<Styles xmlns="https://github.com/avaloniaui">
+ <Style Selector="Button.icon > PathIcon">
+ <Setter Property="Opacity" Value="0.5" />
+ </Style>
+ <Style Selector="Button.icon:pointerover > PathIcon">
+ <Setter Property="Opacity" Value="0.75" />
+ </Style>
+</Styles>
\ No newline at end of file

MODIFY
WalletWasabi.Fluent/Styles/Styles.axaml
WalletWasabi.Fluent/Styles/Styles.axaml
<StyleInclude Source="avares://WalletWasabi.Fluent/Styles/ActionButton.axaml" />
<StyleInclude Source="avares://WalletWasabi.Fluent/Styles/Checkmark.axaml" />
<StyleInclude Source="avares://WalletWasabi.Fluent/Styles/FontSizes.axaml" />
+ <StyleInclude Source="avares://WalletWasabi.Fluent/Styles/IconButton.axaml" />
<StyleInclude Source="avares://WalletWasabi.Fluent/Styles/InvisibleButton.axaml" />
<StyleInclude Source="avares://WalletWasabi.Fluent/Styles/Label.axaml" />
<StyleInclude Source="avares://WalletWasabi.Fluent/Styles/OptionButton.axaml" />

Add icon button style