decal settings (#20324)

Content.Shared/Decals/DecalPrototype.cs

@@ -15,5 +15,23 @@ namespace Content.Shared.Decals
         /// If the decal is rotated compared to our eye should we snap it to south.
         /// </summary>
         [DataField("snapCardinals")] public bool SnapCardinals = false;
+
+        /// <summary>
+        /// True if this decal is cleanable by default.
+        /// </summary>
+        [DataField]
+        public bool DefaultCleanable;
+
+        /// <summary>
+        /// True if this decal has custom colors applied by default
+        /// </summary>
+        [DataField]
+        public bool DefaultCustomColor;
+
+        /// <summary>
+        /// True if this decal snaps to a tile by default
+        /// </summary>
+        [DataField]
+        public bool DefaultSnap = true;
     }
 }