station_obscurum_unity/Assets/Scripts/UI/ObjectiveText.cs

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.UI;
using TMPro;

[ExecuteAlways]
public class ObjectiveText : MonoBehaviour
{
    
    [SerializeField]
    public List<VisualObjectiveItemGUI> visualObjects;
    
    [SerializeField]
    private Color inCompleteColor = Color.white;
    [SerializeField]
    private Color completeColor = Color.yellow;
    [SerializeField]
    private float speed;
    [SerializeField]
    private Animator animator;

    // Start is called before the first frame update
    void Start()
    {
           
    }

    // Update is called once per frame
    void Update()
    {
        foreach(VisualObjectiveItemGUI item in visualObjects)
        {
            if (item.isComplete){
                item.icon.color = Color.Lerp(item.icon.color, completeColor, Time.deltaTime*speed);
            }
            else
            {
                item.icon.color = Color.Lerp(item.icon.color,inCompleteColor, Time.deltaTime*speed);
            }
        }
    }
    public void FadeOut()
    {
        animator.Play("FadeOut");
    }
    public void FadeIn()
    {
        animator.Play("FadeIn");
    }
}

[System.Serializable]
public class VisualObjectiveItemGUI
{
    public TMP_Text text;
    public Image icon;
    public bool isComplete = false;

}