Gmail is a free, advertising-supported email service developed by Google. Users can access Gmail on the web and through the mobile apps for Android and iOS, as well as through third-party programs that synchronize email content through POP or IMAP protocols.
In this article, we will show you, how you can change your default background theme for Gmail account.
How to change theme on Gmail
In your Gmail, go to Settings cog in the upper-right corner
Now you can choose one of the pre-set images, or you can also upload your own picture by clicking on My Photos
In My Photos tab, you can upload your photo or insert add a URL for photo
Your new background will be set, you can close the window.