hello, do you know how I can draw with my mouse on textures? or other drawing tricks? I speak in from the side of the editor not in the gameScene. Below a sample code:

using UnityEngine;
using UnityEditor;

public class MyWindow : EditorWindow
{
   string myString = "Bella zi";
   bool groupEnabled;
   bool myBool = true;
   float myFloat = 1.23f;
   Texture2D texty = new Texture2D(150,150);

   // Add menu named "My Window" to the Window menu
   [MenuItem ("Window/My Window")]
   static void Init ()
   {
      // Get existing open window or if none, make a new one:
      MyWindow window = (MyWindow)EditorWindow.GetWindow (typeof (MyWindow));
      window.Show ();
   }

   void OnGUI ()
   {
      GUILayout.Label ("Base Settings", EditorStyles.boldLabel);
      EditorGUILayout.TextArea(myString, GUILayout.Height(200));

      //little box with texture to draw <-------
      GUILayout.Box(texty,GUILayout.Width(150),GUILayout.Height(150));      

      groupEnabled = EditorGUILayout.BeginToggleGroup ("Optional Settings", groupEnabled);
      myBool = EditorGUILayout.Toggle ("Toggle", myBool);
      myFloat = EditorGUILayout.Slider ("Slider", myFloat, -3, 3);
      EditorGUILayout.EndToggleGroup ();
   }
}

thanks!!