FEEDBACK-THEMES() FEEDBACK-THEMES()

feedback-themes - Theme configuration for feedbackd

In order to reflect device specifics and user overrides the feedback (such as sound, haptic or led) that is being triggered by an event can be configured and overridden by so called themes. Feedback themes use a JSON format that can be validated with fbd-theme-validate.

For details on how to create or modify feedback themes see feedbackd's documentation at <https://source.puri.sm/Librem5/feedbackd#feedback-theme>

To build a theme you can use several different feedback types:

  • Sound: Plays a sound from the installed sound theme
  • VibraRumble: A single rumble using the haptic motor
  • VibraPeriodic: A periodic rumble using the haptic motor
  • Led: A LED blinking in a periodic pattern

Sound feedbacks specify an event name from a XDG sound theme. Sound themes are described in the Sound theme spec at <https://freedesktop.org/wiki/Specifications/sound-theme-spec/>

The VibraRumble feedback uses a single property

•
duration: The duration of the rumble in ms.

The Led feedback type uses two properties to specify the way a LED blinks.

  • color: This specifies the color a LED should blink with. It supports the fixed color names red, green, blue and white as well as values in the RGB HEX format (#RRGGBB) where RR, GG and BB are two digit hex value between 00 and FF specifying the value of each component. E.g. #00FFFF corresponds to cyan color.
  • frequency: The LEDs blinkinig frequencey in mHz.

feedbackd(8) fbcli(1) fbd-theme-validate(1)