ForeUI will have a special feature: allow changing the theme of the UI prototype, the default theme will be “Wireframe Theme”, which represent the components with wireframe. We will implement at least 3 more themes: Windows Theme, Mac OS X Theme and Java Theme, these themes will simulate the real UI effect, for preview purpose.

For example: the user draw the screen once, then he/she can render it in different themes, to see what will it look like in Mac, in Windows or in Java.