xfce4-windowck-plugin/themes/windowck/right-active.xpm

/* XPM */
static char * right_active = {
"3 1 3 1", 
"#	c #000000 s active_mid_2", 
"%	c #000000 s active_color_1", 
"+	c #000000 s active_shadow_1", 
"#%+", 
};