User Interface has been changed completely for SWPM 20 (SWPM 1.0 SP 20)and SWPM 20 (SWPM 1.0 SP 20) comes with FIORI FLAVOR and it opens in Web browser and interface looks similar to SUM.
This article is for if you still want to open SWPM in old fashion -same old GUI flavor -Is it possible ?
Answer is YES.
START SWPM 20 GUI MODE
To START SWPM 20 GUI MODE (SWPM 1.0 SP 20), Open SWPM with below parameter:
SWPM will launch in old style GUI instead of browser.