Global using directives for the Editor assembly. It imports common namespaces (Sandbox, System, Editor sub-namespaces, JSON, Reflection, IO, Diagnostics, etc.) so other files in the Editor project can use those types without repeated using statements.
global using Sandbox; global using Sandbox.Rendering; global using Editor; global using System; global using System.Runtime.CompilerServices; global using System.Collections.Generic; global using System.IO; global using System.Linq; global using System.Threading.Tasks; global using System.Text; global using System.Text.Json; global using System.Text.Json.Serialization; global using System.ComponentModel; global using System.Reflection; global using System.Diagnostics; global using Editor.NodeEditor; global using Editor.ShaderGraphExtras; global using Editor.ShaderGraphExtras.Nodes; global using Sandbox.Resources; global using System.Text.Json.Nodes;