Little fix about zh_cn.json

Author: Emperormummy

src/main/resources/assets/journeymap/lang/zh_cn.json

@@ -43,8 +43,8 @@
   "jm.color.hex": "十六进制",
   "jm.color.history": "历史",
   "jm.color.hue_abbreviated": "H",
-  "jm.color.new": "新",
-  "jm.color.old": "旧",
+  "jm.color.new": "新颜色",
+  "jm.color.old": "旧颜色",
   "jm.color.red_abbreviated": "R",
   "jm.color.saturation_abbreviated": "S",
   "jm.color.value_abbreviated": "V",