diff --git a/PROMS/VEPROMS.CSLA.Library/Format/PlantFormat.cs b/PROMS/VEPROMS.CSLA.Library/Format/PlantFormat.cs
index 1721c0b5..343fc323 100644
--- a/PROMS/VEPROMS.CSLA.Library/Format/PlantFormat.cs
+++ b/PROMS/VEPROMS.CSLA.Library/Format/PlantFormat.cs
@@ -530,6 +530,16 @@ namespace VEPROMS.CSLA.Library
 				return _FontSizes == null ? _FontSizes = new FontSizes(SelectSingleNode("FontSizes")) : _FontSizes;
 			}
 		}
+		// C2021-004 This gets the list for additional shading options defined in the format (base) file
+		private ShadingOptionList _ShadingOptionList;
+		public ShadingOptionList ShadingOptionList
+		{
+			get
+			{
+				return (_ShadingOptionList == null) ? _ShadingOptionList = new ShadingOptionList(SelectNodes("MoreShadingOptions/ShadingOption")) : _ShadingOptionList;
+			}
+			set { _ShadingOptionList = value; }
+		}
 		private SymbolList _SymbolList;
 		public SymbolList SymbolList
 		{
@@ -890,6 +900,84 @@ namespace VEPROMS.CSLA.Library
 		}
 	}
 	#endregion
+	#region ShadingOptions
+	// C2021-004 Additional shading color options defined in the format file
+	/*  Example XML in base format file:
+		<MoreShadingOptions>
+			<ShadingOption A="255" R="211" G="211" B="211" Desc="15% Gray" />
+		</MoreShadingOptions>
+	 **/
+	[TypeConverter(typeof(ExpandableObjectConverter))]
+	public class ShadingOption : vlnFormatItem
+	{
+		public ShadingOption(XmlNode xmlNode) : base(xmlNode) { }
+		public ShadingOption() : base() { }
+		[Category("Ints")]
+		private LazyLoad<int?> _Alpha;
+		public int? Alpha
+		{
+			get
+			{
+				return LazyLoad(ref _Alpha, "@A");
+			}
+		}
+		[Category("Ints")]
+		private LazyLoad<int?> _Red;
+		public int? Red
+		{
+			get
+			{
+				return LazyLoad(ref _Red, "@R");
+			}
+		}
+		[Category("Ints")]
+		private LazyLoad<int?> _Green;
+		public int? Green
+		{
+			get
+			{
+				return LazyLoad(ref _Green, "@G");
+			}
+		}
+		[Category("Ints")]
+		private LazyLoad<int?> _Blue;
+		public int? Blue
+		{
+			get
+			{
+				return LazyLoad(ref _Blue, "@B");
+			}
+		}
+		[Category("Strings")]
+		private LazyLoad<string> _Desc;
+		public string Desc
+		{
+			get
+			{
+				return LazyLoad(ref _Desc, "@Desc");
+			}
+		}
+		public override string GetPDDisplayName()
+		{ return Desc; }
+		public override string GetPDDescription()
+		{ return string.Format("Shading Description '{0}' Alpha {1} Red {2} Green {3} Blue {4}", Desc, Alpha, Red, Green, Blue); }
+		public override string GetPDCategory()
+		{ return "Additional Shading Options"; }
+		public override string ToString()
+		{
+			return Desc;
+		}
+		public string GetARBGstringForTableCells()
+		{
+			return string.Format("[A={0}, R={1}, G={2}, B={3}]", Alpha, Red, Green, Blue);
+		}
+	}
+	[TypeConverter(typeof(vlnListConverter<ShadingOptionList, ShadingOption>))]
+	public class ShadingOptionList : vlnFormatList<ShadingOption>
+	{
+		public ShadingOptionList(XmlNodeList xmlNodeList) : base(xmlNodeList) { }
+	}
+	#endregion
 	#region Symbols
 	[TypeConverter(typeof(ExpandableObjectConverter))]
 	public class Symbol : vlnFormatItem