Twitter have unveiled and released the new look profiles to all users. Previously, only larger brands and organisations were privileged to customise their profile with a header graphic. Your profile picture and your Twitter bio will appear over this, lending it much more prominence.
Twitter Profile Header
You can now upload a header graphic
Go to the settings cog to the right of the top bar
Select ‘Edit Profile’ (which you will see just below your name)
On the sidebar menu, select Design
Below the premade themes, you will see Customise Your Own
Upload your header. The dimensions are to be a minimum of 1252×626 1200 x 600 and maximum file size of 5MB
You can now position your Twitter background (left, centre and right), which is something we designers have been crying out for for years. What this means is that now you will be able to customise a background that will not suffer when the profile is viewed on different sized screens.
the frame that contains the Twitter content (streams, pictures and suggestions) can now bet set to either black or white
The image grid is now a much larger, more prominent grid of six. This could be something to consider when your tweeting images.