Guide

1. Go to the left-side panel and click 'Customization'.

2. Under the Profile tab, find the Banner Image section and click the 'Upload' button next to it. Choose the image file you want to use.

3. Adjust the position of the image to fit it accordingly.

4. Subsequently, click 'Done'.

5. Tap 'Publish' in the top-right corner to save the changes.

6. After completing these steps, the channel art will be changed according to your input.