The border width is purely a theme issue, you just need to use another theme which suits your need better.
Debian may not package all themes, but that's a Debian issue more than a problem with xfwm4.
You may also check a site such as www.xfce-look.org for more themes.
The border width is purely a theme issue, you just need to use another theme which suits your need better.
Debian may not package all themes, but that's a Debian issue more than a problem with xfwm4.
You may also check a site such as www.xfce-look.org for more themes.