変数名の代わりに好きな文字列をインスペクタに表示できるカスタム属性

CustomLabelAttribute.cs

#if UNITY_EDITOR

using UnityEditor;
using UnityEngine;

namespace shigeno_EditorUtility
{
    public class CustomLabelAttribute : PropertyAttribute
    {
        public string newFieldLabel;

        public CustomLabelAttribute(string _newLabel)
        {
            this.newFieldLabel = _newLabel;
        }
    }

    [CustomPropertyDrawer(typeof(CustomLabelAttribute))]
    public class Drawer : PropertyDrawer
    {
        public override void OnGUI(Rect position, SerializedProperty property, GUIContent label)
        {
            CustomLabelAttribute customLabel = (CustomLabelAttribute) attribute;
            label.text = customLabel.newFieldLabel;
            EditorGUI.PropertyField(position, property, label);
        }
    }

}

#endif