You can change how to display profile icons in the Agenda, Inbox, and other sections in the App Settings section. There are three options:
1.) Tap on More (...) in the lower right of your screen on mobile (iOS/Android) and lower left on cloze.com.
2.) Tap on Settings
3.) In the App Settings section tap on Display and Layout to expand the section.
Then scroll down to the section labeled: "Profile Icons" and tap on dropdown to set: