stringToMaskFilter function
Implementation
MaskFilter? stringToMaskFilter(String data) {
final String style = data.substring(data.indexOf('('), data.indexOf(','));
final BlurStyle? blurStyle =
ExEnum.tryParse<BlurStyle>(BlurStyle.values, style);
final double sigma =
double.parse(data.substring(data.indexOf(',') + 1, data.indexOf(')')));
return blurStyle != null ? MaskFilter.blur(blurStyle, sigma) : null;
}