I was adding external global styles to a project and did not add them in "angular.json". As far as I have seen or read on various articles, most people do include their styles within "angular.json". But I got the styles working just fine even after omitting that step. Although one reason that I can figure out is that the main styles file "src/styles.css" is already there and I imported all my styles there. So that could be the reason it's working. Besides, I also had to add the styles and scripts in "index.html" to make it work. Just curious about the reasons.
Thanks!!