I know how to add custom fonts in the app. But confusion in weight and style.For Ex.If I'm adding Montserrat font in the app and In my app's asset folder has is only Montserrat-Regular.ttf So in pubspec.yaml file I wrote. Fonts:- family: Montserratfonts:- asset: asset/fonts/Montserrat-Regular.ttfAnd in the Text widgets I used all the 3 normal, bold and italic and it's working!!!