The Docs editors make it easy to work with others on the same file at the same time. And the next time you are working with others on a presentation in Slides, you'll see their names appear next to their cursor as they type—just like in Docs.
Also, many of you have been editing themes in Slides for the last few weeks and sending us helpful feedback. Today you’ll be able to make use of a couple of new ways to save time and customize your presentations.

Reuse custom themes in new presentations 
There may come a time when you want to reuse a theme that you worked hard to create, and now you can—just select “From another presentation…” in the theme chooser.
Add objects to themes and layouts 
While editing a slide, you can now right click on any object and add it to a theme or a specific layout so that the next time you want to use it, it will already be part of the slide template.
Update text styles in placeholders
Let's say you're editing a body placeholder, and you change the font of your text (or other style properties, such as bold, color, etc.). You can now easily apply this formatting across slides that use the same layout by right clicking on the placeholder and selecting "Update in theme."