Once you have chosen a theme, set the 'Preset Theme' in Ability settings, then disable the theme designer. If having used the theme designer and the preset theme does not appear, please reload the page.
Header
Header Menu
Background
Content
Text
Buttons
Menus
Menu Titles
Dialogs
Dialog Titles
Footer
Copyright
Transparent Background Tile
Background Tile
Click the icon to generate theme CSS code.
If no CSS code appears, click the icon, set some styles and try again.
When CSS code appears, copy and paste to...
skin/ability/custom/css/themes/custom.css
Then in the Ability Template settings, set the theme to 'Custom' and disable the theme designer.