Right now I can add a button like

If there is no app.module.ts file so how can we user angular material , because for using angular material first we need to import material module, is there any another way to do it ?

I am trying to have mat-label text be in Red – having red font either part of a required field as input or select type fields. Input and Select fields have an attribute required. I would like the red font to be on page load and not after some user interaction.