static Color primaryColor = Color(0xFFFF7D54); // The orange Color that dominates most the appplication
static Color textColor = Color(0xFF1E1E1E); // Text black faded color used on most texts
static Color greyColor = Color(0xFFA0A0A0); // Grey color used ass accent color in the application
Bottom navigation bar
Navigate to the files highlighted by red color
To change menu style go to bottom_navigation.dart in which BottomNavigation in there you will be able to change to your desired menus in this application it used a custom menu bar found in "widgets/nav_bar.dart". Simply update the implementation in bottomNavigation bar from line 53 and add your desired navigation bar.
Tab navigation, to update how pages are navigated check in tab_navigation.dart, in this page you will be able to update which pages are navigated based on navigator index. In this page you will find a Map of Tabindex and widgetBuilder