add arc-green theme

.gitattributes

@@ -3,6 +3,7 @@
 # 忽略非项目代码统计
 .github/** linguist-vendored
 .vscode/** linguist-generated
+assets/** linguist-generated
 dist/** linguist-generated
 gitea/** linguist-generated
 primer/** linguist-generated

NOTICE

@@ -4,4 +4,11 @@ Copyright 2024-2026 https://github.com/lutinglt
 This product includes software developed by https://github.com/lutinglt.
 
 This project is licensed under the Apache License, Version 2.0.
-See the LICENSE file in the root directory for the full license text.
+See the LICENSE file in the root directory for the full license text.
+
+**********************
+THIRD PARTY COMPONENTS
+**********************
+This software includes third party software subject to the following copyrights:
+- Gitea - https://github.com/go-gitea/gitea
+- Gitea Theme - https://github.com/lsd-techno/gitea-theme

THIRD_PARTY_LICENSES.md

@@ -0,0 +1,33 @@
+# Third-Party Licenses
+
+This project is licensed under the Apache License 2.0 (see [LICENSE](./LICENSE) and [NOTICE](./NOTICE)). The third-party
+works below keep their original copyright and are licensed under the MIT License; the license text is at the end.
+
+- **go-gitea/gitea** — <https://github.com/go-gitea/gitea>
+  - Files: `gitea/`
+  - Copyright (c) 2016 The Gitea Authors, Copyright (c) 2015 The Gogs Authors
+- **lsd-techno/gitea-theme** — <https://github.com/lsd-techno/gitea-theme>
+  - Files: `assets/theme-arc-green-updated.css`
+  - Copyright (c) 2024 lsd-techno
+
+## MIT License
+
+```text
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+```