A Theme is a set of predefined Forms, Controls and image files that can be used to stylish your application.

This window allows to create, edit and delete themes.
To create a Control equal to one of the Theme, drag it from a Theme to the background of a Form. To apply the Style of a Control, drag it, holding CTRL, from a Theme to a Control of the same type in the Form. To apply the Style of a Control to all the Controls of same type in the Form, drag it, holding CTRL, from a Theme to the background of a Form.

Special cases: you can drag an Image Control to a Button and vice-versa. In each case, you will be prompt to change the Type of the Control.

When you drag an image file from the Theme to the background of a Form, an Image Control will be created. When you drag an image file, holding CTRL, from the Theme to the background of a Form, you’ll set the Image file as the Form’s Background. Dragging an Image file to an image Control will set the Control’s image.

Special cases: if you drag an image file to a Button Control, you will be prompt to change the Type of the Control.