[Sprite] Fix Stunfisk variant backs to use shader (#5293)

public/images/pokemon/variant/_masterlist.json

@@ -1397,7 +1397,7 @@
 		"612": [0, 1, 1],
 		"616": [0, 1, 1],
 		"617": [0, 1, 1],
-		"618": [0, 2, 2],
+		"618": [0, 1, 1],
 		"619": [0, 1, 1],
 		"620": [0, 1, 1],
 		"621": [0, 1, 1],

public/images/pokemon/variant/back/618.json

@@ -0,0 +1,40 @@
+{
+	"1": {
+		"cebd00": "bdac99",
+		"ffff00": "f3e6dd",
+		"6b6319": "987b6d",
+		"081019": "081019",
+		"52423a": "312118",
+		"6b524a": "4a342a",
+		"bd846b": "8c3841",
+		"846b63": "6b3838",
+		"d69c84": "ad4c4c",
+		"efce42": "eac2bd",
+		"d6cec5": "d6cec5",
+		"ffffff": "ffffff",
+		"081018": "081018",
+		"735a52": "564038",
+		"735a53": "564038",
+		"9c8473": "a08773",
+		"bda59c": "e6dbd6"
+	},
+	"2": {
+		"cebd00": "58536b",
+		"ffff00": "707488",
+		"6b6319": "39314a",
+		"081019": "081019",
+		"52423a": "5a2e2e",
+		"6b524a": "804e48",
+		"bd846b": "cec9b1",
+		"846b63": "9c7765",
+		"d69c84": "f0ead6",
+		"efce42": "9fadb9",
+		"d6cec5": "4c8c4c",
+		"ffffff": "79a962",
+		"081018": "204a29",
+		"735a52": "885011",
+		"735a53": "735555",
+		"9c8473": "c18a2c",
+		"bda59c": "efc44b"
+	}
+}