private void InitializeImagesForButtons()
        {
            FirstNumberImageSource = new Image {
                Source = ConstantsHelper.EmptyDotImage
            };
            SecondNumberImageSource = new Image {
                Source = ConstantsHelper.EmptyDotImage
            };
            ThirdNumberImageSource = new Image {
                Source = ConstantsHelper.EmptyDotImage
            };
            FourthNumberImageSource = new Image {
                Source = ConstantsHelper.EmptyDotImage
            };

            var currentTheme = _themeSwitcher.GetThemeType();

            DeleteButtonImageSource = currentTheme == ThemeTypes.Dark ?
                                      ConstantsHelper.PinButtonDarkDeleteImageSource :
                                      ConstantsHelper.PinButtonLightDeleteImageSource;
        }