Google has started to rollout design changes to Google Calendar and Gmail, in a bid to de-clutter the online services.

The changes are merely cosmetic for now, and are not affecting how Calendar or Gmail works.

In the calendar, a number of tweaks have been made to the layout. These include the quick add button moving to under the create button, the print and refresh links are now buttons and visual indictors on calendar entries will now only appear if you hover over the event.

Google has made these changes to focus more on the functionality of the calendar, rather than providing an overwhelming information overload.

It is also so that the look of the desktop, tablet and mobile versions of the service will be more consistent.

Gmail new look

As well calendar, Gmail is getting a new look which takes a similar streamlined approach and adds a number of new themes.

Preview and Preview (Dense) have been created to accommodate different screen sizes, which is set to happen some time in the near future.

We're embarking on a series of interface updates to help strip out unnecessary clutter and make Gmail as beautiful as it is powerful," said Google about the new design changes.

"This is part of a Google-wide effort to bring you an experience that's more focused, elastic, and effortless across all of our products."