Here’s how to change your theme in Gmail. Gmail comes comes with a default theme but you can mix up the look and feel of your inbox by changing your Gmail theme.
- Go to your Gmail Inbox
- Click the small Settings cog wheel button top right of screen and select Themes from the menu
- Select a color them you like from the options
This is how to change you theme in Gmail. Please note that changing themes may interfere with certain plug-ins or extensions if you have them running in your browser.