Use glow effect to target

Assets/Battle/BattleParticipantSprite.cs

@@ -42,14 +42,12 @@ public class BattleParticipantSprite : MonoBehaviour
         }
     }
 
-    private Color savedColor;
     private bool colorChanged;
 
     void OnMouseEnter() {
         if (!this.removedFromBattle && this.playerControls.CouldTarget(participant)) {
             SpriteRenderer sprite = GetComponent<SpriteRenderer>();
-            this.savedColor = sprite.color;
-            sprite.color = Color.Lerp(this.savedColor, Color.white, .5f);
+            sprite.material.SetFloat("_Glow", 1f);
             this.colorChanged = true;
         }
     }
@@ -57,7 +55,7 @@ public class BattleParticipantSprite : MonoBehaviour
     void OnMouseExit() {
         if (this.colorChanged) {
             SpriteRenderer sprite = GetComponent<SpriteRenderer>();
-            sprite.color = this.savedColor;
+            sprite.material.SetFloat("_Glow", 0f);
             this.colorChanged = false;
         }
     }

Assets/Battle/BattleScene.unity

@@ -537,6 +537,87 @@ CanvasRenderer:
   m_PrefabAsset: {fileID: 0}
   m_GameObject: {fileID: 527589753}
   m_CullTransparentMesh: 0
+--- !u!1 &810366537
+GameObject:
+  m_ObjectHideFlags: 0
+  m_CorrespondingSourceObject: {fileID: 0}
+  m_PrefabInstance: {fileID: 0}
+  m_PrefabAsset: {fileID: 0}
+  serializedVersion: 6
+  m_Component:
+  - component: {fileID: 810366539}
+  - component: {fileID: 810366538}
+  m_Layer: 0
+  m_Name: BG
+  m_TagString: Untagged
+  m_Icon: {fileID: 0}
+  m_NavMeshLayer: 0
+  m_StaticEditorFlags: 0
+  m_IsActive: 1
+--- !u!212 &810366538
+SpriteRenderer:
+  m_ObjectHideFlags: 0
+  m_CorrespondingSourceObject: {fileID: 0}
+  m_PrefabInstance: {fileID: 0}
+  m_PrefabAsset: {fileID: 0}
+  m_GameObject: {fileID: 810366537}
+  m_Enabled: 1
+  m_CastShadows: 0
+  m_ReceiveShadows: 0
+  m_DynamicOccludee: 1
+  m_MotionVectors: 1
+  m_LightProbeUsage: 1
+  m_ReflectionProbeUsage: 1
+  m_RayTracingMode: 0
+  m_RenderingLayerMask: 1
+  m_RendererPriority: 0
+  m_Materials:
+  - {fileID: 10754, guid: 0000000000000000f000000000000000, type: 0}
+  m_StaticBatchInfo:
+    firstSubMesh: 0
+    subMeshCount: 0
+  m_StaticBatchRoot: {fileID: 0}
+  m_ProbeAnchor: {fileID: 0}
+  m_LightProbeVolumeOverride: {fileID: 0}
+  m_ScaleInLightmap: 1
+  m_ReceiveGI: 1
+  m_PreserveUVs: 0
+  m_IgnoreNormalsForChartDetection: 0
+  m_ImportantGI: 0
+  m_StitchLightmapSeams: 1
+  m_SelectedEditorRenderState: 0
+  m_MinimumChartSize: 4
+  m_AutoUVMaxDistance: 0.5
+  m_AutoUVMaxAngle: 89
+  m_LightmapParameters: {fileID: 0}
+  m_SortingLayerID: 0
+  m_SortingLayer: 0
+  m_SortingOrder: 0
+  m_Sprite: {fileID: 21300000, guid: 765b2e275927a4443a27e0deb8b15900, type: 3}
+  m_Color: {r: 0.5283019, g: 0.5283019, b: 0.5283019, a: 1}
+  m_FlipX: 0
+  m_FlipY: 0
+  m_DrawMode: 0
+  m_Size: {x: 12.8, y: 7.2}
+  m_AdaptiveModeThreshold: 0.5
+  m_SpriteTileMode: 0
+  m_WasSpriteAssigned: 1
+  m_MaskInteraction: 0
+  m_SpriteSortPoint: 0
+--- !u!4 &810366539
+Transform:
+  m_ObjectHideFlags: 0
+  m_CorrespondingSourceObject: {fileID: 0}
+  m_PrefabInstance: {fileID: 0}
+  m_PrefabAsset: {fileID: 0}
+  m_GameObject: {fileID: 810366537}
+  m_LocalRotation: {x: 0, y: 0, z: 0, w: 1}
+  m_LocalPosition: {x: 0.0042, y: -0.0075, z: 10}
+  m_LocalScale: {x: 1.3900115, y: 1.3913027, z: 1}
+  m_Children: []
+  m_Father: {fileID: 0}
+  m_RootOrder: 5
+  m_LocalEulerAnglesHint: {x: 0, y: 0, z: 0}
 --- !u!1 &1189144791
 GameObject:
   m_ObjectHideFlags: 0

Assets/Battle/Graphics/HitEffectMaterial.mat

@@ -9,7 +9,7 @@ Material:
   m_PrefabAsset: {fileID: 0}
   m_Name: HitEffectMaterial
   m_Shader: {fileID: 4800000, guid: a36b7719ff0465b42ab1407d67672c5f, type: 3}
-  m_ShaderKeywords: ETC1_EXTERNAL_ALPHA HITEFFECT_ON
+  m_ShaderKeywords: ETC1_EXTERNAL_ALPHA GLOW_ON HITEFFECT_ON
   m_LightmapFlags: 4
   m_EnableInstancingVariants: 0
   m_DoubleSidedGI: 0
@@ -132,7 +132,7 @@ Material:
     - _GlossMapScale: 1
     - _Glossiness: 0.5
     - _GlossyReflections: 1
-    - _Glow: 10
+    - _Glow: 0
     - _GlowTexUsed: 0
     - _GradBlend: 1
     - _GrassManualAnim: 1