Recognizable chemicals (#16761)

Content.Shared/Chemistry/Reagent/ReagentPrototype.cs

@@ -52,6 +52,12 @@ namespace Content.Shared.Chemistry.Reagent
         [ViewVariables(VVAccess.ReadOnly)]
         public string LocalizedPhysicalDescription => Loc.GetString(PhysicalDescription);
 
+        /// <summary>
+        ///     Is this reagent recognizable to the average spaceman (water, welding fuel, ketchup, etc)?
+        /// </summary>
+        [DataField("recognizable")]
+        public bool Recognizable = false;
+
         [DataField("flavor")]
         public string Flavor { get; } = default!;
 
@@ -81,7 +87,7 @@ namespace Content.Shared.Chemistry.Reagent
         public bool Slippery = false;
 
         /// <summary>
-        /// How much reagent slows entities down if it's part of a puddle. 
+        /// How much reagent slows entities down if it's part of a puddle.
         /// 0 - no slowdown; 1 - can't move.
         /// </summary>
         [DataField("viscosity")]