This has already been partially answered but on TJC; https://together.jolla.com/question/...mbient-change/ Example (assumes you have "Flow" ambience installed and set as a favourite); Code: dbus-send --session --dest=com.jolla.ambienced --type=method_call /com/jolla/ambienced com.jolla.ambienced.setAmbience string:"file:///usr/share/ambience/flow/flow.ambience" But I have no idea how to incorporate this into QML, not without some research!
dbus-send --session --dest=com.jolla.ambienced --type=method_call /com/jolla/ambienced com.jolla.ambienced.setAmbience string:"file:///usr/share/ambience/flow/flow.ambience"