Things You'll Need
Instructions
Open the painting software on your computer. Any basic painting software, such as MS Paint, will suffice.
Create your decal using the painting software and save it to your computer's desktop.
Open your Internet browser and navigate to Roblox's home page.
Log in to your account on the home page of the site.
Click on the "My Roblox" tab at the top of your profile page.
Click on the "Decals" tab.
Click on "Create."
Click on "Browse." A list of available files will appear in a window.
Select your decal file from the list and click "OK."
Click "Create Decal" when prompted and your decal will be approved.