In this section you will introduce to applying style to
controls. You can change the appearance of components using style properties. If
you set the style of the parent container it may be inherited by its children.
It means you can set the style once and then apply that style to all controls of
a single type.
You can provide the property value in three format:
There are many ways to apply styles in flex. They are following:
1. External style sheets
2. Local style sheets
3. Using StyleManager class
4. getStyle() and setStyle() method
5. Inline Style
6. Setting global styles
Recommend the tutorial