Using a style

To apply a specific style, set the style-name in the style attribute of the node representing the graphical element in the abstract user interface tree.

There are different ways to set the style attribute of an element:

The names used to define the STYLE attribute must be a style-name only, these must not contain the element-type that is typically used to define the style in a .4st file (as CheckBox.important for example)

For example, to define a style in a form file for an input field:
EDIT f001 = customer.fname, STYLE = "info";
Several styles can be combined, by using a space as separator:
EDIT f001 = customer.fname, STYLE = "info important";