Changing the left navigation icons on Cosmos User Portal

I have created new navigation items on the user portal using the channels and interfaces tab of the application. The application is built on Cosmos.

Theres a default icon created. I would like to change the icon for each of these newly created navigation items.

Hi @SaiB0245

In App Studio, navigate to Channels.
Open the portal where you wanted to add.
In content tab, select custom pages. Click on the page which you wanted to add as a navigation item.
there you will have an option to change the icon.
refer attached screenshot.