A new Gmail update will let users compose their emails in full screen. Google has stated that this is a much requested feature and offers flexibility to users within the new compose window. The full-screen window option will be rolled out in the next couple of days to everyone.
Gmail's new compose box will let you open the compose screen like a chat window in a separate screen. Users will also have the option to expand the screen by clicking on the top right button or go to the default to full screen in the menu options in the bottom right.
Google had rolled out the new compose window in October last year and made it the default way in March this year. The new compose window allows users to easily reference with older mails without switching back and forth.
The controls to the new compose box are easily accessible and won't come in the users way. Another feature added is that that profile pictures of the contacts will show up in auto complete once the recipients are added in the send to option leading to lesser errors in sending messages. While adding the new features Gmail has still retained all its previous features like spell check, print, add text and add attachments in Google Drive.
Right now users can still access the old compose mode though Google has stated in a blog post that the old compose will be going away soon. Google has also asked users to submit their view about the changes through Google .
Source: Gmail Google Page