Some PDF file reported as pure data by file utility, so guess PDF
type based on extension
XXkb.mainwindow.enable: no
XXkb.mainwindow.type: tray
XXkb.mainwindow.appicon: no
XXkb.mainwindow.in_tray: true
# xxkb at start time tries to find all application already run.
XXkb.controls.add_when_start: yes
# This resource require 'geometry'.
# XXkb.mainwindow.enable: yes
# XXkb.mainwindow.geometry: 100x100+0+0
# Lang per window.
# XXkb.button.enable: yes
XXkb.mainwindow.label.enable: yes
XXkb.mainwindow.label.background: yellow
XXkb.mainwindow.label.foreground: blue4
XXkb.mainwindow.label.font: -misc-*-r-*-13-*