show\_stacktraces | **Optional.** Whether to show debug stacktraces. Defaults to `0`.
module\_path | **Optional.** Specifies the directories where modules can be installed. Multiple directories must be separated with colons.
config\_backend | **Optional.** Select the user preference storage. Can be set to `ini` (default), `db` or `none`. If `db` is selected, this requires the `config_resource` attribute.
config\_resource | **Optional.** Specify a defined [resource](04-Resources.md#resources-configuration-database) name. Can only be used if `config_backend` is set to `db`.
Example for storing the user preferences in the database resource `icingaweb_db`:
theme | **Optional.** Choose the theme. Can be set to `Icinga`, `high-contrast`, `Winter` or your own installed theme. Defaults to `Icinga`. Note that this setting is case-sensitive because it refers to the filename of the theme.
disabled | **Optional.** Set this to `1` if users should not be allowed to change their theme. Defaults to `0`.