Welcome to the first chapter of this book! In this chapter, we'll go through various functions of the SDK. These are the features that make the development process accessible to people other than programmers. You can also, in many cases, get quick visual results by just tweaking values and without having to launch an application. In short, it's a development hub because you will return and use these functions from time to time in your project. On the difficulty scale, these recipes lean towards the easy side, with little or no programming. The exception is the last part of the chapter where modifying the core packages is necessary to achieve the results we want.