Yes, you can change you default avatar to picture. To change your avatar:
- Click on rightmost side of main Navigation menu, User Profile icon > Profile Settings
- Click on your avatar icon, located in the leftmost panel
- Select the picture from the local disk.
If no picture is provided by the user, your given first and last name initials are used on your profile icon.
In Profile settings, you can change the background color of your name avatar by clicking on “‘change BG color” that appears when you mouse over it.