https://github.com/humbertoschoenwald/auto-theme-solar-engine

A privacy-first, ultra-lightweight Windows tray utility built with .NET 11 Native AOT that automatically syncs your system theme with the local solar cycle using offline astronomical calculations.

astronomy auto-theme csharp csharp-15 dark-mode dotnet dotnet-11 dpapi light-mode lightweight native-aot no-telemetry offline-first privacy-first solar-cycle sunrise-sunset system-tray theme-switcher win32-api windows

Last synced: 14 May 2026