You are referring to the weight tickers on the bottom .
I'll tell you how to get yours.
Go to your spark page.
On top right side click "Edit my spark page"
Scroll down towards the bottom and click on "Ticker background" and selct one you like and scroll to bottom and click "Save changes"
Repeat the process and slick "ticker icon" and select the icon you want and click "save changes"
To add your weight go to your spark apge and click on start under Tools and click "Weigh-in and enter your states and "save changes" and you're alls et.
| current weight: 170.0