GUISkin.font

public Font font ;

Description

Шрифт по умолчанию для использования во всех стилях.

using UnityEngine;
using System.Collections;

public class ExampleClass : MonoBehaviour {
    public Font f;
    void OnGUI() {
        if (!f) {
            Debug.LogError("No font found, assign one in the inspector.");
            return;
        }
        GUI.skin.font = f;
        GUILayout.Label("This is a label with the font");
        GUILayout.Button("And this is a button");
    }
}