GitPedia

Semi.Avalonia

Avalonia theme inspired by Semi Design

From irihitech·Updated June 25, 2026·View on GitHub·

Semi.Avalonia can be previewed in the browser [here](https://irihitech.github.io/Semi.Avalonia/) The project is written primarily in C#, distributed under the MIT License license, first published in 2022. It has gained significant community traction with 1,896 stars and 165 forks on GitHub. Key topics include: avalonia, avaloniaui, dark-mode, semidesign, theme.

Latest release: v12.0.3
May 25, 2026View Changelog →

Semi Avalonia

Semi Avalonia
Semi Avalonia
GitCode

中文

Avalonia Theme inspired by Semi Design

Semi.Avalonia can be previewed in the browser here

If you are looking for more detailed documentation, Please visit Semi Documentation

If you are looking for more customized controls, Please try Ursa

Light

How to Use

Installation

bash
dotnet add package Semi.Avalonia

Include Semi Design Styles in application:

xaml
<Application ... xmlns:semi="https://irihi.tech/semi"> <Application.Styles> <semi:SemiTheme Locale="zh-CN" /> </Application.Styles> </Application>

That's all.

ColorPicker, DataGrid, TreeDataGrid, Dock, Tabalonia and AvaloniaEdit are distributed in separated packages. Please install if you need.

bash
dotnet add package Semi.Avalonia.ColorPicker dotnet add package Semi.Avalonia.DataGrid dotnet add package Semi.Avalonia.TreeDataGrid dotnet add package Semi.Avalonia.Dock dotnet add package Semi.Avalonia.Tabalonia dotnet add package Semi.Avalonia.AvaloniaEdit
xaml
<Application.Styles> <semi:ColorPickerSemiTheme /> <semi:DataGridSemiTheme /> <semi:TreeDataGridSemiTheme /> <semi:DockSemiTheme /> <semi:TabaloniaSemiTheme /> <semi:AvaloniaEditSemiTheme /> </Application.Styles>

Notice: Dock, Tabalonia and AvaloniaEdit are delivered via nuget for free, but not open source. Please read the license and agree to continue use these packages. If you need source code, please contact us via email: contact@irihi.tech

Demo

You can always download demo executable to play around with Semi Avalonia Themes.
https://github.com/irihitech/Semi.Avalonia/releases

Support

We offer limited free community support for Semi Avalonia and Ursa. If you have any question or suggestion, feel free to raise issues and discussions via GitHub, and you are welcomed to join our group via FeiShu(Lark)

FeiShu

Version compatibility

Semi Avalonia VersionAvalonia Version
11.3.7>=11.3.7
11.2.1>=11.2.1
11.2.0End of Life
11.1.xEnd of Life

Credits

Semi Design

Avalonia

FluentAvalonia

Material Design Icons

CommunityToolKit

Contributors

Showing top 12 contributors by commit count.

View all contributors on GitHub →

This article is auto-generated from irihitech/Semi.Avalonia via the GitHub API.Last fetched: 6/26/2026