The standard sticker app that you created earlier using the sticker pack template is very plain. The generated iMessage app shows stickers on a white background and that's about it. Sticker apps shouldn't be more complex than this, but wouldn't it be great if you could at least change the background color for a sticker app? This isn't possible if you're using the simple sticker pack template. You can, however, create your own sticker pack app and customize the background. Doing this will allow you to familiarize yourself with the code that's involved in creating an iMessage app, so let's create a custom sticker pack.
In the source code repository for this book, you'll find a project named CustomStickers. This ...
