private void OnEnable()
    {
        SoundSettings.onVolumeChange += FillImage;
        string jData = File.ReadAllText(Application.persistentDataPath + GameConstants.CONFIG_Path);
        SoundSettingsToSave toGet = JsonUtility.FromJson <SoundSettingsToSave>(jData);

        SoundSettings.Volume = (float)toGet.Volume;
    }
    private void OnDisable()
    {
        SoundSettings.onVolumeChange -= FillImage;
        SoundSettingsToSave toSave = new SoundSettingsToSave()
        {
            Volume = SoundSettings.Volume
        };
        string jData = JsonUtility.ToJson(toSave);

        File.WriteAllText(Application.persistentDataPath + GameConstants.CONFIG_Path, jData);
    }