/usr/share/themes/Crux/xfwm4/themerc is in xfwm4-themes 4.10.0-2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 | title_alignment=left
full_width_title=false
button_offset=0
button_spacing=2
active_text_color=#FFFFFF
inactive_text_color=#626562
|