I would like to disable the Windows logo during boot of IoT when building a new OS image. (Ideally i would like to change it to a custom mage, but that is another question).
I am able to do it at runtime via bcdedit, setting bootuxdisable to on.
There are steps in https://docs.microsoft.com/en-us/windows-hardware/manufacture/iot/oscustomizations, chapter BCD Settings, detailing how to disable the Boot Progress Animation Circle (which do not appear to actually work, as the animation still appears) by adding the CUSTOM_BCD feature to the image. I can see from the generated bcd that it has taken effect (the setting "nobootuxprogress" is set to "Yes").
Is there a WellKnownType that corresponds to the "bootuxdisable" bcd option? Is there a list of WellKnownTypes anywhere?