iOS

Here are a list of basic customization you can do before compiling the app.

Name

To change app name you will need to go to project settings by clicking on Project root file from Project Navigator panel on left. Here you have a field named Display Name Which would be the name of the app.

Project Settings page

Theme

You can change the tint color from SceneDelegate.swift file. In this file you will find following code snippet and you can change the highlighted line to any color of your choice

AppDelegate.swift
if let windowScene = scene as? UIWindowScene {
let window = UIWindow(windowScene: windowScene)
window.tintColor = UIColor.purple
let shared = SharedSettings()
window.rootViewController = UIHostingController(rootView: contentView.environmentObject(shared))
self.window = window
window.makeKeyAndVisible()
}s

Icon

In project's Assets.xcassets You would have an AppIcon image set which would be the icon of your app. To generate icons with different size as needed here you can use online tools of plugins for you favorite editor. One of good tools to generate icons easier: