/usr/share/libwacom/intuos-6x8.tablet is in libwacom-common 0.18-1.
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 | [Device]
Name=Wacom Intuos 6x8
DeviceMatch=usb:056a:0021
Class=Intuos
Width=8
Height=6
Styli=0xd12;0xd1a;0x822;0x82a;0x812;0x832;0x096;0x094;
[Features]
Stylus=true
Buttons=0
|