We recommend that users create overriddes. This creates the problem that there
is no syntax to unset a property. Thus, the user needs to just set the property
to "something else" in the override file. But then the blurb saying that
"VAR=1" (or "VAR=0" in some cases) is the only allowed value can be confusing.
Say that both 0 and 1 can be set, since this documentation is also intended
for end users.
In our files, we generally don't want the override values anywhere. But we
have a test which checks the rvalue, which should be enough.
We don't want to encourage people to copy the whole files. The
boilerplate text that recommends an override file rather than a
full copy appeared first in 0213a26f65,
but was added in other places in 57bb707d48.
Directly inspired by 951e8cb060, but
the wrong boilerplate was added in other places too.
Give access to USB/Bluetooth lights such as the Logitech Litra family of
devices.
The Logitech devices in particular are accessible through USB
and Bluetooth.
