Design of the application

Our first example of an ActionScript component application is a variation of the standard "Hello World" application, so its design is fairly simple:

The application will be called Greetings.
It uses a TextArea to display a greeting that is initially Hello World.
It uses a ColorPicker that allows you to change the color of the text.
It uses three RadioButtons that allow you to set the size of the text to small, larger or largest.
It uses a ComboBox that allows you to select a different greeting from a drop-down list.
The application uses components from the Components panel and also creates application elements through ActionScript code.

With that definition in place, you can start building the application.