GDM 2.21 Theme question

[Mark]

> I read postings that referred to custom.conf
>
> locate custom.conf
> /etc/gdm/custom.conf
> /etc/gdm/custom.conf.livna-config-backup
>
> cat /etc/gdm/custom.conf
> # GDM configuration storage
>
> [xdmcp]
>
> [chooser]
>
> [debug]

that only contains:
# GDM configuration storage

[xdmcp]

[chooser]

[debug]