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## Summary of the Pull Request The Command Palette allows users to create extensions with dashes in their names, which is invalid for C# namespaces. This causes projects to fail during build because the name cannot be used as a valid namespace. ## Changes - Updated the validation regex in `NewExtensionForm.cs` to only allow valid C# identifiers - Now only allows names starting with a letter or underscore, followed by letters, numbers, or underscores - Explicitly prevents dashes, spaces, and other special characters - Improved the error message to clearly explain the requirements for valid C# identifiers ## Before Previously, the input only validated that no spaces were used: ```csharp "regex": "^[^\\s]+$" ``` ## After Now the input properly validates for C# namespace compatibility: ```csharp "regex": "^[a-zA-Z_][a-zA-Z0-9_]*$" ``` This ensures that users cannot create extension projects with names that would fail to build. ## PR Checklist - [ ] **Closes:** https://github.com/microsoft/PowerToys/issues/38522
PowerToys Source Code
Code organization
The PowerToys are split into DLLs for each PowerToy module (modules folder), and an executable (runner folder) that loads and manages those DLLs.
The settings window is a separate executable, contained in settings-ui folder. It utilizes a WebView to display an HTML-based settings window.
The common contains code for a static library with helper functions, used by both the runner and the PowerToys modules.