diff --git a/include/constants/field_effects.h b/include/constants/field_effects.h
index 92d3e6cbf3..e6a0b8058c 100644
--- a/include/constants/field_effects.h
+++ b/include/constants/field_effects.h
@@ -132,5 +132,7 @@
 // Duplicates of event_object_movement tags
 #define FLDEFF_PAL_TAG_MAY 0x1110 // OBJ_EVENT_PAL_TAG_MAY
 #define FLDEFF_PAL_TAG_BRENDAN 0x1100 // OBJ_EVENT_PAL_TAG_BRENDAN
+#define FLDEFF_PAL_TAG_NPC_1 0x1103 // OBJ_EVENT_PAL_TAG_NPC_1
+#define FLDEFF_PAL_TAG_NPC_2 0x1104 // OBJ_EVENT_PAL_TAG_NPC_2
 
 #endif // GUARD_FIELD_EFFECT_CONSTANTS_H
diff --git a/include/overworld.h b/include/overworld.h
index 0c573eec2a..422d692ebf 100644
--- a/include/overworld.h
+++ b/include/overworld.h
@@ -47,7 +47,6 @@ struct LinkPlayerObjectEvent
 // Exported RAM declarations
 extern struct WarpData gLastUsedWarp;
 extern struct LinkPlayerObjectEvent gLinkPlayerObjectEvents[4];
-extern struct Coords16 gLightMetatiles[32];
 
 extern u16 *gBGTilemapBuffers1;
 extern u16 *gBGTilemapBuffers2;
diff --git a/src/data/field_effects/field_effect_objects.h b/src/data/field_effects/field_effect_objects.h
index 00b95340ea..7a0f1266df 100755
--- a/src/data/field_effects/field_effect_objects.h
+++ b/src/data/field_effects/field_effect_objects.h
@@ -948,7 +948,7 @@ static const union AnimCmd *const sAnimTable_Sparkle[] =
 
 const struct SpriteTemplate gFieldEffectObjectTemplate_Sparkle = {
     .tileTag = TAG_NONE,
-    .paletteTag = TAG_NONE,
+    .paletteTag = FLDEFF_PAL_TAG_NPC_2,
     .oam = &gObjectEventBaseOam_16x16,
     .anims = sAnimTable_Sparkle,
     .images = sPicTable_Sparkle,
diff --git a/src/event_object_movement.c b/src/event_object_movement.c
index 431c4a1648..84ce2f235d 100644
--- a/src/event_object_movement.c
+++ b/src/event_object_movement.c
@@ -511,7 +511,7 @@ static const struct SpritePalette sObjectEventSpritePalettes[] = {
     {gObjectEventPal_RubySapphireMay,       OBJ_EVENT_PAL_TAG_RS_MAY},
     {gObjectEventPal_Npc1, OBJ_EVENT_PAL_TAG_DYNAMIC},
     {gObjectEventPaletteEmotes, OBJ_EVENT_PAL_TAG_EMOTES},
-    {NULL,                  0x0000},
+    {NULL,                  OBJ_EVENT_PAL_TAG_NONE},
 };
 
 static const u16 sReflectionPaletteTags_Brendan[] = {
diff --git a/src/field_effect_helpers.c b/src/field_effect_helpers.c
index 323cdbe4da..d1e785a749 100755
--- a/src/field_effect_helpers.c
+++ b/src/field_effect_helpers.c
@@ -1438,7 +1438,7 @@ u32 FldEff_BerryTreeGrowthSparkle(void)
         sprite = &gSprites[spriteId];
         sprite->coordOffsetEnabled = TRUE;
         sprite->oam.priority = gFieldEffectArguments[3];
-        sprite->oam.paletteNum = 5; // TODO: What paletteTag does this use?
+        UpdateSpritePaletteByTemplate(gFieldEffectObjectTemplatePointers[FLDEFFOBJ_SPARKLE], sprite);
         sprite->data[0] = FLDEFF_BERRY_TREE_GROWTH_SPARKLE;
     }
     return 0;
diff --git a/src/fldeff_misc.c b/src/fldeff_misc.c
index bb2cdf82c6..36d64b3fcd 100644
--- a/src/fldeff_misc.c
+++ b/src/fldeff_misc.c
@@ -1024,7 +1024,7 @@ void DoSecretBaseGlitterMatSparkle(void)
     {
         gSprites[spriteId].coordOffsetEnabled = TRUE;
         gSprites[spriteId].oam.priority = 1;
-        gSprites[spriteId].oam.paletteNum = 5; // TODO: What palette should this use?
+        UpdateSpritePaletteByTemplate(gFieldEffectObjectTemplatePointers[FLDEFFOBJ_SPARKLE], &gSprites[spriteId]);
         gSprites[spriteId].callback = SpriteCB_GlitterMatSparkle;
         gSprites[spriteId].data[0] = 0;
     }
diff --git a/src/overworld.c b/src/overworld.c
index 2e377ccf2c..b1bf8c1857 100644
--- a/src/overworld.c
+++ b/src/overworld.c
@@ -207,7 +207,6 @@ EWRAM_DATA static struct InitialPlayerAvatarState sInitialPlayerAvatarState = {0
 EWRAM_DATA static u16 sAmbientCrySpecies = 0;
 EWRAM_DATA static bool8 sIsAmbientCryWaterMon = FALSE;
 EWRAM_DATA struct LinkPlayerObjectEvent gLinkPlayerObjectEvents[4] = {0};
-EWRAM_DATA struct Coords16 gLightMetatiles[32] = {0};
 
 
 static const struct WarpData sDummyWarpData =
@@ -596,23 +595,6 @@ struct MapHeader const *const GetDestinationWarpMapHeader(void)
     return Overworld_GetMapHeaderByGroupAndId(sWarpDestination.mapGroup, sWarpDestination.mapNum);
 }
 
-// Caches light metatile coordinates
-static void CacheLightMetatiles(void) { // TODO: Better way to dynamically generate lights
-  u8 i = 0;
-  s16 x, y;
-  for (x = 0; x < gBackupMapLayout.width; x++) {
-    for (y = 0; y < gBackupMapLayout.height; y++) {
-      if (MapGridGetMetatileBehaviorAt(x, y) == 0x04) {
-        gLightMetatiles[i].x = x;
-        gLightMetatiles[i].y = y;
-        i++;
-      }
-    }
-  }
-  gLightMetatiles[i].x = -1;
-  gLightMetatiles[i].y = -1;
-}
-
 static void LoadCurrentMapData(void)
 {
     sLastMapSectionId = gMapHeader.regionMapSectionId;
@@ -833,7 +815,6 @@ void LoadMapFromCameraTransition(u8 mapGroup, u8 mapNum)
     Overworld_ClearSavedMusic();
     RunOnTransitionMapScript();
     InitMap();
-    CacheLightMetatiles();
     CopySecondaryTilesetToVramUsingHeap(gMapHeader.mapLayout);
     LoadSecondaryTilesetPalette(gMapHeader.mapLayout);
 
@@ -1766,7 +1747,6 @@ void CB2_ContinueSavedGame(void)
     }
     else
     {
-        CacheLightMetatiles();
         TryPutTodaysRivalTrainerOnAir();
         gFieldCallback = FieldCB_FadeTryShowMapPopup;
         SetMainCallback1(CB1_Overworld);
@@ -1926,7 +1906,6 @@ static bool32 LoadMapInStepsLocal(u8 *state, bool32 a2)
         (*state)++;
         break;
     case 3:
-        CacheLightMetatiles();
         InitObjectEventsLocal();
         SetCameraToTrackPlayer();
         (*state)++;
diff --git a/src/trainer_see.c b/src/trainer_see.c
index 3bf4e0c2fd..93b21ac7bb 100644
--- a/src/trainer_see.c
+++ b/src/trainer_see.c
@@ -303,7 +303,7 @@ static const struct SpriteTemplate sSpriteTemplate_ExclamationQuestionMark =
 static const struct SpriteTemplate sSpriteTemplate_HeartIcon =
 {
     .tileTag = TAG_NONE,
-    .paletteTag = FLDEFF_PAL_TAG_GENERAL_0,
+    .paletteTag = FLDEFF_PAL_TAG_NPC_1,
     .oam = &sOamData_Icons,
     .anims = sSpriteAnimTable_Icons,
     .images = sSpriteImageTable_HeartIcon,
@@ -870,7 +870,7 @@ u8 FldEff_HeartIcon(void)
         struct Sprite *sprite = &gSprites[spriteId];
 
         SetIconSpriteData(sprite, FLDEFF_HEART_ICON, 0);
-        sprite->oam.paletteNum = 2; // TODO: What palette should this use?
+        UpdateSpritePaletteByTemplate(&sSpriteTemplate_HeartIcon, sprite);
     }
 
     return 0;