So close to the original DSB ??? Must be a joke.
The 'autohide after download' function does not stay, even the defaulted 'autohide of everything when not specified' doesn't work.
The downloads are by default routed to to the download folder, without any possibility to get the usual "last selected location" behaviour.
Colors for the very obtrusive bars are not selectable.

And this is called by some trolls here as "so close" ?

Got rid of this add-on. Don't let yourself be fooled.