public void SetThemeTest()
        {
            _theme.SetTheme(AppTheme.ThemeDefault);
            var actual = Theme.Current;

            Assert.AreEqual(typeof(DefaultTheme), actual.GetType());
        }
        void changeTheme(ThemePageModel theme)
        {
            var appTheme = new AppTheme(_services);

            appTheme.SetTheme(theme.Theme);
        }