hi, Thanks for the detail replied. maybe a bit too detailed ;)
No this is a leaked ford official tool, the images are probably to stop any potential LCD burn in, although i'm not sure these displays are using a technology that is prone to this. the images are a bit odd though i have to admit, i guess since it's a factory tool they probably just did something to show it wasn't frozen.
It has to be official as all packages are signed by ford's cryptographic signature. strangely this tool does check if you have a compatible car but then continues anyway, could literally be a bug in the code or intentional, either way we can use it to get sync 3+ on our non 3+ compatible devices.
the DONTINDX file is exactly what it sounds like "Dont Index" it tells SYNC to just not index the USB and instead only process the update.
You can downgrade but the exact steps vary a lot, hopefully you took note of your IVSU's as that will make it a lost easier.
I can't answer what the differences are, 19200 appears to be what is used on new cars in showrooms according to reports., 19101 is the only one with a auto dim option, all others force it on with no choice to change it.
It is complicated for ford to update older units, the reformat tool, repartitions the system. they can't release an update due to too small partition sizes on the older variants.
Edit 1 : Yes this happens on default themes, not sure if it's a bug by ford and they never fixed it or it's intentional, personally i reckon the latter.
Edit 2 / 3 : You will likely need to set some setting in Forscan or UCDS, i can't advise with this as it's different depending on many factors, google your car and apim asbuilt.
Edit 4: honestly i don't know i only really use AA mostly.
Edit 5: i don't seem to have this issue,.