'That's why we offer lots of ways to customize your experience - from inbox categories, to email formatting, to shareable selfies - and why today we're expanding your options with additional themes, and emoji.' 'Your inbox is home to some of your most meaningful and entertaining messages - from that acceptance letter, to those throwback photos - so we think it's important for Gmail to feel just as personal (and fun!),' wrote Software Engineer Gaurav Vijay on the company's blog page. Google first introduced the theme option in 2008 and since then, it had become an important feature of Gmail. Apart from adding more artistic appeal, themes also play a huge role in keeping one's inbox more organized by being able to point out the difference between a home inbox and a work inbox. The latest update caters to those who want to have more theme options on their inbox. This include undoing a sent mail (for those who have sent an email by mistake and want to retract it), trip bundles, adding a custom signature for a more personalized way in sending messages, opening an app directly from inbox, and notable improvements to Google Calendar on iPhone.

Google has been adding more focus lately on Gmail by allowing more ways for users to customize their experience.

Gmail themes change with time