Here it is.

I didn't remeber what steps I did today, but in order to reproduce the screenshot I: changed to MeeGo-style swype, rebooted, changed to Sailfish-style swype, rebooteed, opened message app, swyped to normal keyboard (Italian or English with arrows is the same), and the screenshot was the result (in Terminal because with a black it's better the contrast, but in message app it's similar).
To restore black functions toolbar I had to go into Ambiance settings and then Restart themedaemon (after the above worked too), and isn't necessary to touch again the swype style (selected Sailfish-style as described above).