check palette references

OpenRA.Mods.D2k/Traits/Render/WithAttackOverlay.cs

@@ -22,7 +22,7 @@ namespace OpenRA.Mods.D2k.Traits
 		[SequenceReference] public readonly string Sequence = null;
 
 		[Desc("Custom palette name")]
-		public readonly string Palette = null;
+		[PaletteReference] public readonly string Palette = null;
 
 		[Desc("Custom palette is a player palette BaseName")]
 		public readonly bool IsPlayerPalette = false;

OpenRA.Mods.D2k/Traits/Render/WithCrumbleOverlay.cs

@@ -21,7 +21,7 @@ namespace OpenRA.Mods.D2k.Traits
 		[SequenceReference] public readonly string Sequence = "crumble-overlay";
 
 		[Desc("Custom palette name")]
-		public readonly string Palette = null;
+		[PaletteReference] public readonly string Palette = null;
 
 		[Desc("Custom palette is a player palette BaseName")]
 		public readonly bool IsPlayerPalette = false;

OpenRA.Mods.D2k/Traits/Render/WithDeliveryOverlay.cs

@@ -25,7 +25,7 @@ namespace OpenRA.Mods.D2k.Traits
 		public readonly WVec Offset = WVec.Zero;
 
 		[Desc("Custom palette name")]
-		public readonly string Palette = null;
+		[PaletteReference] public readonly string Palette = null;
 
 		[Desc("Custom palette is a player palette BaseName")]
 		public readonly bool IsPlayerPalette = false;

OpenRA.Mods.D2k/Traits/World/FogPaletteFromR8.cs

@@ -19,14 +19,17 @@ namespace OpenRA.Mods.D2k.Traits
 {
 	class FogPaletteFromR8Info : ITraitInfo
 	{
-		[FieldLoader.Require]
+		[FieldLoader.Require, PaletteDefinition]
 		[Desc("Internal palette name")]
 		public readonly string Name = null;
+
 		[FieldLoader.Require]
 		[Desc("Filename to load")]
 		public readonly string Filename = null;
+
 		[Desc("Palette byte offset")]
 		public readonly long Offset = 0;
+
 		public readonly bool AllowModifiers = true;
 		public readonly bool InvertColor = false;
 

OpenRA.Mods.D2k/Traits/World/PaletteFromR8.cs

@@ -19,14 +19,17 @@ namespace OpenRA.Mods.D2k.Traits
 {
 	class PaletteFromR8Info : ITraitInfo
 	{
-		[FieldLoader.Require]
+		[FieldLoader.Require, PaletteDefinition]
 		[Desc("Internal palette name")]
 		public readonly string Name = null;
+
 		[FieldLoader.Require]
 		[Desc("Filename to load")]
 		public readonly string Filename = null;
+
 		[Desc("Palette byte offset")]
 		public readonly long Offset = 0;
+
 		public readonly bool AllowModifiers = true;
 		public readonly bool InvertColor = false;
 

OpenRA.Mods.D2k/Traits/World/PaletteFromScaledPalette.cs

@@ -19,11 +19,11 @@ namespace OpenRA.Mods.D2k.Traits
 	[Desc("Create a palette by applying a scale and offset to the colors in another palette.")]
 	class PaletteFromScaledPaletteInfo : ITraitInfo
 	{
-		[FieldLoader.Require]
+		[FieldLoader.Require, PaletteDefinition]
 		[Desc("Internal palette name")]
 		public readonly string Name = null;
 
-		[FieldLoader.Require]
+		[FieldLoader.Require, PaletteReference]
 		[Desc("The name of the palette to base off.")]
 		public readonly string BasePalette = null;