Large Text in Unity Inspector

Question

I'am building a game using the webcam where I have to step back from the screen for testing. Thus I would like to display a single value in the inspector using a larger font.

Is there a possibility to change the text size in the inspector of a single entry?

I'm currently using [Title ("$currentState")] which creates bold text, but does not increase text size.

Answer 1

Using the PropertyDrawer as proposed by @DMGregory finally works:

using UnityEditor;
using UnityEngine;

[CustomPropertyDrawer (typeof (LargeTextInGUI))]
public class LargeTextInGUIDrawer : PropertyDrawer
{
    public override void OnGUI (Rect position, SerializedProperty property, GUIContent label)
    {
        var style = new GUIStyle ();
        style.fontSize = 40;
        EditorGUI.LabelField (position, label.text, property.intValue.ToString(), style);
    }

    public override float GetPropertyHeight (SerializedProperty property, GUIContent label)
    {
        return 45;
    }
}

using UnityEngine;

public class LargeTextInGUI : PropertyAttribute
{
}

public class MyClass: ScriptableObject{
    [LargeTextInGUI]
    public int currentState;
}