diff --git a/OpenRA.Mods.Common/Traits/Buildings/BaseProvider.cs b/OpenRA.Mods.Common/Traits/Buildings/BaseProvider.cs
index cf491915c2..0facf33c22 100644
--- a/OpenRA.Mods.Common/Traits/Buildings/BaseProvider.cs
+++ b/OpenRA.Mods.Common/Traits/Buildings/BaseProvider.cs
@@ -78,8 +78,7 @@ namespace OpenRA.Mods.Common.Traits
 				Color.FromArgb(96, Color.Black));
 		}
 
-		// Selection bar
-		public float GetValue()
+		float ISelectionBar.GetValue()
 		{
 			// Visible to player and allies
 			if (!ValidRenderPlayer())
@@ -92,6 +91,6 @@ namespace OpenRA.Mods.Common.Traits
 			return (float)progress / total;
 		}
 
-		public Color GetColor() { return Color.Purple; }
+		Color ISelectionBar.GetColor() { return Color.Purple; }
 	}
 }
diff --git a/OpenRA.Mods.Common/Traits/ExternalCapturableBar.cs b/OpenRA.Mods.Common/Traits/ExternalCapturableBar.cs
index 2634392f15..57837084c7 100644
--- a/OpenRA.Mods.Common/Traits/ExternalCapturableBar.cs
+++ b/OpenRA.Mods.Common/Traits/ExternalCapturableBar.cs
@@ -28,7 +28,7 @@ namespace OpenRA.Mods.Common.Traits
 			capturable = self.Trait<ExternalCapturable>();
 		}
 
-		public float GetValue()
+		float ISelectionBar.GetValue()
 		{
 			// only show when building is being captured
 			if (!capturable.CaptureInProgress)
@@ -37,6 +37,6 @@ namespace OpenRA.Mods.Common.Traits
 			return (float)capturable.CaptureProgressTime / (capturable.Info.CaptureCompleteTime * 25);
 		}
 
-		public Color GetColor() { return Color.Orange; }
+		Color ISelectionBar.GetColor() { return Color.Orange; }
 	}
 }
diff --git a/OpenRA.Mods.Common/Traits/Power/AffectedByPowerOutage.cs b/OpenRA.Mods.Common/Traits/Power/AffectedByPowerOutage.cs
index 8355be4f28..105b2daeda 100644
--- a/OpenRA.Mods.Common/Traits/Power/AffectedByPowerOutage.cs
+++ b/OpenRA.Mods.Common/Traits/Power/AffectedByPowerOutage.cs
@@ -28,7 +28,7 @@ namespace OpenRA.Mods.Common.Traits
 			playerPower = self.Owner.PlayerActor.Trait<PowerManager>();
 		}
 
-		public float GetValue()
+		float ISelectionBar.GetValue()
 		{
 			if (playerPower.PowerOutageRemainingTicks <= 0)
 				return 0;
@@ -36,7 +36,7 @@ namespace OpenRA.Mods.Common.Traits
 			return (float)playerPower.PowerOutageRemainingTicks / playerPower.PowerOutageTotalTicks;
 		}
 
-		public Color GetColor()
+		Color ISelectionBar.GetColor()
 		{
 			return Color.Yellow;
 		}
diff --git a/OpenRA.Mods.Common/Traits/Render/ProductionBar.cs b/OpenRA.Mods.Common/Traits/Render/ProductionBar.cs
index 7e4ecea686..20492f46ee 100644
--- a/OpenRA.Mods.Common/Traits/Render/ProductionBar.cs
+++ b/OpenRA.Mods.Common/Traits/Render/ProductionBar.cs
@@ -70,7 +70,7 @@ namespace OpenRA.Mods.Common.Traits
 			value = current != null ? 1 - (float)current.RemainingCost / current.TotalCost : 0;
 		}
 
-		public float GetValue()
+		float ISelectionBar.GetValue()
 		{
 			// only people we like should see our production status.
 			if (!self.Owner.IsAlliedWith(self.World.RenderPlayer))
@@ -79,7 +79,7 @@ namespace OpenRA.Mods.Common.Traits
 			return value;
 		}
 
-		public Color GetColor() { return info.Color; }
+		Color ISelectionBar.GetColor() { return info.Color; }
 
 		public void OnOwnerChanged(Actor self, Player oldOwner, Player newOwner)
 		{
diff --git a/OpenRA.Mods.Common/Traits/Render/SupportPowerChargeBar.cs b/OpenRA.Mods.Common/Traits/Render/SupportPowerChargeBar.cs
index 9ef7495053..6320160eb4 100644
--- a/OpenRA.Mods.Common/Traits/Render/SupportPowerChargeBar.cs
+++ b/OpenRA.Mods.Common/Traits/Render/SupportPowerChargeBar.cs
@@ -33,7 +33,7 @@ namespace OpenRA.Mods.Common.Traits
 			this.info = info;
 		}
 
-		public float GetValue()
+		float ISelectionBar.GetValue()
 		{
 			if (!self.Owner.IsAlliedWith(self.World.RenderPlayer))
 				return 0;
@@ -46,6 +46,6 @@ namespace OpenRA.Mods.Common.Traits
 			return 1 - (float)power.RemainingTime / power.TotalTime;
 		}
 
-		public Color GetColor() { return info.Color; }
+		Color ISelectionBar.GetColor() { return info.Color; }
 	}
 }
diff --git a/OpenRA.Mods.Common/Traits/Render/TimedUpgradeBar.cs b/OpenRA.Mods.Common/Traits/Render/TimedUpgradeBar.cs
index 58ae1669a9..1440484ad3 100644
--- a/OpenRA.Mods.Common/Traits/Render/TimedUpgradeBar.cs
+++ b/OpenRA.Mods.Common/Traits/Render/TimedUpgradeBar.cs
@@ -49,7 +49,7 @@ namespace OpenRA.Mods.Common.Traits
 			value = remaining * 1f / duration;
 		}
 
-		public float GetValue()
+		float ISelectionBar.GetValue()
 		{
 			if (!self.Owner.IsAlliedWith(self.World.RenderPlayer))
 				return 0;
@@ -57,6 +57,6 @@ namespace OpenRA.Mods.Common.Traits
 			return value;
 		}
 
-		public Color GetColor() { return info.Color; }
+		Color ISelectionBar.GetColor() { return info.Color; }
 	}
 }
diff --git a/OpenRA.Mods.D2k/Traits/TemporaryOwnerManager.cs b/OpenRA.Mods.D2k/Traits/TemporaryOwnerManager.cs
index 5a22a0f9e2..53fad7e016 100644
--- a/OpenRA.Mods.D2k/Traits/TemporaryOwnerManager.cs
+++ b/OpenRA.Mods.D2k/Traits/TemporaryOwnerManager.cs
@@ -66,7 +66,7 @@ namespace OpenRA.Mods.D2k.Traits
 				changingOwner = null; // It was triggered by this trait: reset
 		}
 
-		public float GetValue()
+		float ISelectionBar.GetValue()
 		{
 			if (remaining <= 0)
 				return 0;
@@ -74,7 +74,7 @@ namespace OpenRA.Mods.D2k.Traits
 			return (float)remaining / duration;
 		}
 
-		public Color GetColor()
+		Color ISelectionBar.GetColor()
 		{
 			return info.BarColor;
 		}
diff --git a/OpenRA.Mods.RA/Traits/Chronoshiftable.cs b/OpenRA.Mods.RA/Traits/Chronoshiftable.cs
index 613f74812b..4f038e686b 100644
--- a/OpenRA.Mods.RA/Traits/Chronoshiftable.cs
+++ b/OpenRA.Mods.RA/Traits/Chronoshiftable.cs
@@ -114,7 +114,7 @@ namespace OpenRA.Mods.RA.Traits
 		}
 
 		// Show the remaining time as a bar
-		public float GetValue()
+		float ISelectionBar.GetValue()
 		{
 			if (!info.ReturnToOrigin)
 				return 0f;
@@ -126,7 +126,7 @@ namespace OpenRA.Mods.RA.Traits
 			return (float)ReturnTicks / duration;
 		}
 
-		public Color GetColor() { return info.TimeBarColor; }
+		Color ISelectionBar.GetColor() { return info.TimeBarColor; }
 
 		public void ModifyDeathActorInit(Actor self, TypeDictionary init)
 		{
diff --git a/OpenRA.Mods.RA/Traits/PortableChrono.cs b/OpenRA.Mods.RA/Traits/PortableChrono.cs
index 67a4fd7161..9e4fb26ead 100644
--- a/OpenRA.Mods.RA/Traits/PortableChrono.cs
+++ b/OpenRA.Mods.RA/Traits/PortableChrono.cs
@@ -105,12 +105,12 @@ namespace OpenRA.Mods.RA.Traits
 			get { return chargeTick <= 0; }
 		}
 
-		public float GetValue()
+		float ISelectionBar.GetValue()
 		{
 			return (float)(Info.ChargeDelay - chargeTick) / Info.ChargeDelay;
 		}
 
-		public Color GetColor() { return Color.Magenta; }
+		Color ISelectionBar.GetColor() { return Color.Magenta; }
 	}
 
 	class PortableChronoOrderTargeter : IOrderTargeter