PropertyAttribute.applyToCollection

Description

Makes attribute affect collections instead of their items.

using UnityEditor;
using UnityEditor.UIElements;
using UnityEngine;
using UnityEngine.UIElements;

public class Collection : MonoBehaviour
{
    public int before;
    [GreenCollectionDrawer] public int[] collection;
    public int after;
}

public class GreenCollectionDrawerAttribute : PropertyAttribute
{
    public GreenCollectionDrawerAttribute() : base(true) { }
}

[CustomPropertyDrawer(typeof(GreenCollectionDrawerAttribute))]
public class GreenCollectionDrawer : PropertyDrawer
{
    public override VisualElement CreatePropertyGUI(SerializedProperty property)
    {
        return new PropertyField(property)
        {
            style =
            {
                backgroundColor = Color.green
            }
        };
    }
}