Default compilation includes for .NET Core projects is explained here: Default compilation includes in .NET Core projects

This document explains how default compilation includes is implemented for iOS, tvOS, macOS, and Mac Catalyst projects.

Default inclusion can be completely disabled by setting EnableDefaultItems=false. It can also be disabled per-platform by setting the platform-specific variables EnableDefaultiOSItems=false, EnableDefaulttvOSItems=false, EnableDefaultMacCatalystItems=false, or EnableDefaultmacOSItems=false.

All *.plist files in the root directory are included by default (as None items).

All *.scnassets directories anywhere in the project directory or any subdirectory are included by default (as SceneKitAsset items).

All *.storyboard and *.xib files in the project directory or any subdirectory are included by default (as InterfaceDefinition items).

All *.pdf, *.jpg, *.png and *.json files inside asset catalogs (*.xcassets) in the project directory or any subdirectory are included by default (as ImageAsset items).

All *.png files inside *.atlas directories in the project directory or any subdirectory are included by default (as AtlasTexture items).

All *.mlmodel files anywhere in the project directory or any subdirectory are included by default (as CoreMLModel items).

All *.metal files anywhere in the project directory or any subdirectory are included by default (as Metal items).

All files in the Resources/ subdirectory, except any items in the Compile or EmbeddedResource item groups, and except the ones mentioned above (*.scnassets, *.storyboard, *.xib, *.xcassets, *.atlas, *.mlmodel, *.metal) are included by default (as BundleResource items).