/usr/share/themes/Default-xhdpi/xfwm4/themerc is in xfwm4 4.12.4-1.
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 7 8 9 10 11 12 13 14 15 16 17 18 19 | active_text_color=active_text_color_2
active_text_shadow_color=active_hilight_2
inactive_text_color=inactive_text_color_2
inactive_text_shadow_color=inactive_hilight_2
button_offset=0
button_spacing=0
full_width_title=true
maximized_offset=0
show_app_icon=true
shadow_delta_height=-2
shadow_delta_width=-6
shadow_delta_x=-8
shadow_delta_y=-8
shadow_opacity=100
title_horizontal_offset=2
title_shadow_active=under
title_shadow_inactive=under
title_vertical_offset_active=2
title_vertical_offset_inactive=2
|