1. So can not see the subtitles when it have the white screen backgroundThis is a scam -- it's not a desktop manager, it's a 3rd party program that is disguised this way to steal your data.Installed it on my Minix U22-XJ running Andoid 9.
2. Install this app on the device where you are looking for the real use of the DesktopManager and not on the phone.Subtitles don't have shadow.
3. Instructions could have been better.