Default
People are indicated with an image in a circle.
Silhouette
When the image source is unavailable (for example, when there's a problem displaying the image due to an error), or the source is unspecified, the avatar component will display a default image.
Avatar text
When the image source is unavailable (for example, when there's a problem displaying the image due to an error), or the source is unspecified, the avatar component will display relevant text.
Avatar group
You can display a group of avatars in a stack or a grid.
Stack
Stacked avatar groups can contain up to five avatars, and should only be used with small or medium sized avatars.
