This guide will show you how to set a theme for your pop-ups on screen like this:

What are Themes?
With Themes, you can personalize how to showcase your achievements. Themes allows you to personalize the screen background that pops-up when a task has been done, meeting booked, offer sent, or product sold. Some of the themes are immediately available, while others you’ll have to unlock.
​
Navigate first to your profile page by clicking on Profile in the top right corner.

Go to "Celebrations":

Scroll down to "Apperances" and select your theme.

Notice that some of the themes are locked. The criteria for unlocking the theme is described below.
​
​Locked theme

You will unlock this theme when you win a competition.

​Unlocked theme

You have unlocked this theme and can now use it.