NarKampen/Assets/Scripts/TimerScript.cs

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

public class TimerScript : MonoBehaviour
{
    Image circleImage;
    Color circleColor;
    public Text timerText;
    float time;
    float timeAmount;

    Color finalColor = new Color32(130,0,16,220);
    Color startlColor = new Color32(16, 0, 255, 200);

    // Start is called before the first frame update
    void Start()
    {
        circleImage = this.GetComponent<Image>();
        time = PlayerPrefs.GetInt("QuestionTimer");
        timeAmount = time;
        circleColor = circleImage.color;

        timerText.text = time.ToString("F0");
    }

    // Update is called once per frame
    void Update()
    {
        circleColor = circleImage.color;
        if (time > 0) {
            time -= Time.deltaTime;
            circleColor = Color.Lerp(startlColor, finalColor, 1-(time/timeAmount));

            circleImage.color = circleColor;
            timerText.text = time.ToString("F0");
        }
    }
}