Avalonia UI

Overview

Avalonia is a cross-platform .NET UI framework using XAML (.axaml), with its own rendering engine (Skia/Impeller), supporting Windows, macOS, Linux, iOS, Android, and WASM. Avalonia 12 is the current stable version; compiled bindings are enabled by default.

Rule: Always load the matching subskill before writing or reviewing Avalonia code.

Routing Table

Task	Load subskill
XAML markup, .axaml files, namespaces, code-behind	avalonia-xaml
Panels, Grid, StackPanel, alignment, margins	avalonia-layout
Styles, control themes, selectors, pseudoclasses, themes	avalonia-styling
{Binding}, compiled bindings, converters, validation	avalonia-data-binding
DataTemplate, ItemTemplate, template selection	avalonia-data-templates
MVVM pattern, INotifyPropertyChanged, ICommand, CommunityToolkit	avalonia-mvvm
Built-in controls (Button, TextBox, DataGrid, etc.)	avalonia-controls
Custom UserControl, TemplatedControl, drawing controls	avalonia-custom-controls
Brushes, transforms, animations, transitions	avalonia-graphics-animation
Pointer, keyboard, gestures, drag-and-drop	avalonia-input-interaction
StyledProperty, DirectProperty, AttachedProperty	avalonia-property-system
Routed events, bubbling, tunneling	avalonia-events
Clipboard, file dialogs, notifications, storage	avalonia-services
App structure, resource dictionaries, app lifetime	avalonia-app-development
Headless testing, UI automation	avalonia-testing
Packaging for macOS/Windows/Linux/WASM	avalonia-deployment
Migrating from WPF	avalonia-wpf-migration
Designing/polishing UI for visual quality, picking themes, building a design system, motion, accessibility, layout patterns, icons, pre-ship review	avalonia-pro-max

Notable Community Packages

A curated short-list of the most commonly needed community packages:

Need	Package
Message box dialogs	MsgBox.Avalonia
Hot reload during dev	HotAvalonia
SVG images	Svg.Skia
Animated GIFs	AvaloniaGif
Charts	LiveChartsCore.SkiaSharpView.Avalonia or ScottPlot.Avalonia
Code editor control	AvaloniaEdit
Docking layout	Dock.Avalonia
Behaviors (DataTrigger replacement)	Avalonia.Xaml.Behaviors
Node editor	NodifyAvalonia (GitHub: BAndysc)
Material theme	Material.Avalonia
Fluent/WinUI controls	FluentAvalonia
Rich dialog service	HanumanInstitute.MvvmDialogs.Avalonia
VLC media player	LibVLCSharp.Avalonia
PDF viewer	MuPDFCore
Deployment packaging	PupNet Deploy (GitHub: kuiperzone/PupNet-Deploy)

Full community list: https://github.com/AvaloniaCommunity/awesome-avalonia