Preprocessor Symbol Definition Files are a simple and elegant way to manage custom #defines in a Unity project for multiple platforms.Similar to assembly definition files, preprocessor symbol definition files are dedicated objects that can be created as an asset in your project to manage custom #defines, also known as preprocessor symbols or scripting define symbols.GitHub Repository & DocumentationFeatures:• Manage custom #defines from dedicated files.• Set the build target platform for custom #defines.• Display active #defines, including compiler, version and platform defines.Donations accepted:I spend a lot of time and effort working on this and other assets. If you like my work or feel generous, I would greatly appreciate a donation ♥• Compatible with Unity 2019.1.0f2 or newer.• Api Compatibility Level: NET Standard 2.0 or .NET 4.x• Scripting Backend: Mono or IL2CPP• No .DLL Full C# source code.