Instructions One: Backpack this background. Two: Add it to a new project. Three: Have 3 tabs open. The tabs you'll need are: ~ your project ~ Your profile ~ my stuff Four: Share the project. Five:Go to your profile, (you may need to refresh the page to see the project) and click 'change featured project'. Select the banner. Six: Head back to my stuff, and unshare the banner. Seven: Go back to your profile and click 'ok'. Now refresh the page, and see that it works!
Credit to https://scratch.mit.edu/projects/435576873/ for the tutorial and some of the instructions. Hope you like it! I made the colors to match your PFP!