adjust rest of the icon sizes
MODIFY
WalletWasabi.Fluent/ViewModels/Wallets/Home/History/HistoryItemViewModel.cs
WalletWasabi.Fluent/ViewModels/Wallets/Home/History/HistoryItemViewModel.cs
using System;
using System.Reactive;
using System.Windows.Input;
-using Avalonia.Controls;
using NBitcoin;
using ReactiveUI;
using WalletWasabi.Blockchain.Transactions;

MODIFY
WalletWasabi.Fluent/Views/Wallets/Home/History/HistoryTable.axaml
WalletWasabi.Fluent/Views/Wallets/Home/History/HistoryTable.axaml
<DataTemplate>
<Panel x:DataType="history:HistoryItemViewModel">
<PathIcon ToolTip.Tip="Transaction" Data="{StaticResource normal_transaction}" Opacity="0.6" IsVisible="{Binding !IsCoinJoin}" />
- <PathIcon ToolTip.Tip="CoinJoin" Data="{StaticResource shield_regular}" Opacity="0.6" Height="12" Width="12" IsVisible="{Binding IsCoinJoin}" />
+ <PathIcon ToolTip.Tip="CoinJoin" Data="{StaticResource shield_regular}" Height="15" Opacity="0.6" IsVisible="{Binding IsCoinJoin}" />
</Panel>
</DataTemplate>
</DataGridTemplateColumn.CellTemplate>
<DataTemplate>
<Button x:DataType="history:HistoryItemViewModel" Classes="plain" ToolTip.Tip="Details"
Command="{Binding ShowDetailsCommand}">
- <PathIcon Data="{StaticResource details_regular}" Opacity="0.6" />
+ <PathIcon Data="{StaticResource details_regular}" Height="15" Opacity="0.6" />
</Button>
</DataTemplate>
</DataGridTemplateColumn.CellTemplate>

adjust rest of the icon sizes