- Fixed some tooltip regressions

- Defined signatures where necessary

Source/Editor/Surface/ContextMenu/VisjectCMItem.cs

@@ -3,6 +3,7 @@
 using System;
 using System.Collections.Generic;
 using System.Linq;
+using System.Text;
 using FlaxEditor.Scripting;
 using FlaxEditor.Surface.Elements;
 using FlaxEditor.Utilities;
@@ -62,7 +63,7 @@ namespace FlaxEditor.Surface.ContextMenu
             Group = group;
             _groupArchetype = groupArchetype;
             _archetype = archetype;
-            TooltipText = $"{_archetype.Signature}\n{_archetype.Description}";
+            TooltipText = GetTooltip();
         }
 
         /// <summary>
@@ -323,6 +324,15 @@ namespace FlaxEditor.Surface.ContextMenu
             Group.ContextMenu.SetDescriptionPanelArchetype(_archetype);
         }
 
+        private string GetTooltip()
+        {
+            StringBuilder sb = new StringBuilder();
+            if (!string.IsNullOrEmpty(_archetype.Signature))
+                sb.Append(_archetype.Signature + "\n");
+            sb.Append(_archetype.Description);
+            return sb.ToString();
+        }
+
         /// <inheritdoc />
         public override bool OnMouseDown(Float2 location, MouseButton button)
         {