How to add your Channel Icon to your YourTube Channel Art
Each channel also has space for a profile icon. You will remember this from the banner images I shared earlier in the article. This is a circular image that starts life as a colored circle with a letter in the middle which matches the name of your channel.
You have the option to change this and typically you would upload a photo of yourself. If you look back to the banner examples from earlier in the article you will see what I mean.
Your channel icon should be 800 x 800 pixels and one of the following formats: JPG, GIF, BMP or PNG file (no animated GIFs).
To update your channel icon, you should select “my channel”, which takes you to your channel homepage.
Hover over your current channel icon (the circle with the letter in the middle) until you see the camera icon appear. Click on that icon and you’ll be able to edit the icon and upload a new photo or logo.