 * Re-implement focus drawing for button, option menu, check button, 
   radio button, entry and scale widgets and list/tree view headers
 * Re-implement handles for scale slider
 * Re-implement listviewheaderstyle setting
 * Make GLOSSY scale look better
 * Improve GLOSSY buttons' contrast
 * Add style engine setting to Readme
 * Improve entry-progress detail handling, be aware of 
   GtkEntry::progress-border property