APEX 4.2 ships with a fully responsive application theme, Blue Responsive, often referred to by its numerical identifier, Theme 25. One really cool feature about this theme is that you can easily create buttons that have icons on them.
Simply choose a button template that has icon in its name. For example, Large Button with Icon:
Then, in the Button CSS Classes field, enter any of the following classes to get the icon you’d like:
And that’s it!
You can also use modifier classes, like iconLeft to position the icon to the left, or leave it out and the icon will show on the right automatically. You can also choose the Icon Only templates if you just want the icon alone.