It is a very simple process...
- Check out the spec page to gather the right size images
- Then go to Settings > Design > Change Header (under the 'Customize' section)
- Upload your new header & move to scale it
- Set your 'Background' and 'Link Color' to match
- Update your profile pic if it does not match (Settings > Profile > Change Photo)
Here are some examples of our newly re-vamped Twitter header & some of our clients...
Green Parking Council