IBus is an Intelligent Input Bus. It is a new input framework for Linux OS. It provides full featured and user friendly input method user interface. It also may help developers to develop input method easily.
00-upstream-settings is a text configuration file of dconf and can be converted to /etc/dconf/db/ibus by dconf update command with a write privilege in /etc/dconf/db. /etc/dconf/db/ibus is a database file of dconf and saves the IBus default settings. The saved keys and values can be readed by dconf command.
env DCONF_PROFILE=ibus dconf list /desktop/ibus/