Starting with version 1.7.60 Pager supports definition of most of it's visual parameters in look file as MyStyles. Styles can also be defined in pager  config file, but main contents of the look file will override them. Include them in your pager  config to make sure that you get nice looking Pager even  if styles are not defined in look file. The following standard  MyStyle names are used :

*PagerUWindowStyle

(defaults to "unfocused_window_style") - unfocused  window representation's style.  Background pixmap and  gradient can be used here.

*PagerFWindowStyle

(defaults to "focused_window_style") - focused  window representation's style.  Background pixmap and  gradient can be used here.

*PagerSWindowStyle

(defaults to "sticky_window_style") - sticky  window representation's style.  Background pixmap and  gradient can be used here.

*PagerActiveDesk

active (selected) desk's label style. This style - defines only look of the desk's LABEL - to define how your actual desk  window will look like - you should use *PagerStyle option - see below.  Background pixmap,  gradient and transparency can be used here.

*PagerInActiveDesk

Same as above, only for inactive desk's label.  Background pixmap,  gradient and transparency can be used here.