Sampled from 4 of ConnectID RP Sample's App Store screenshots — background, accent and theme, measured by LaunchShots (not something Apple publishes).
#242424 bg
#424242
#FFFFFF accent
#FFFFFF text
Captions read from the screenshots (OCR, may contain small errors): 4 headlines, 9.8 words on average (longest 13).
The ConnectID RP Sample App provides a technical demonstration of how a Relying Party can receive Digital Identity attributes from an Identity Provider using the ConnectID test environment. The app is intended as a reference for Relying Parties who are performing a ConnectID integration, providing a working end to end demonstration of the ConnectID flow. The source code for the application is also available to provide a reference for implementers. ConnectID Identity Providers can also use the application to allow verification of their systems in a test environment to ensure the end to end flow is working correctly. ConnectID® makes it easy to verify who you are, using organisations you already trust. ConnectID is available and in use today. For more information see https://connectid.com.au/
Every shipping app on the App Store has gone through the same decisions you're working through right now: which screenshot goes first, what caption sits over it, which device frame to show, what color the background should be. The 8 screenshots above are ConnectID RP Sample's answers to those questions — they're public, they're real, and they made it through Apple's review.
What the numbers say: ConnectID RP Sample runs a dark set with one background colour (#242424) carried across every screenshot — the listing reads as a single poster when the shots sit side by side in search results. Hit Use this style to open the editor with these exact colours and drop your own screenshot in.
Notice the first screenshot in particular. It's the one users see in search results and on the product page, and it's where most apps spend their best caption and tightest design. Look at the proportion of background to phone, where the text sits, what one thing the image is trying to communicate.
Want to see how other Developer Tools apps approach the same problem? Browse more Developer Tools apps in the showcase.
Open LaunchShots and design your App Store & Google Play screenshots — pick a device frame, drop captions, ship in minutes. Free, in your browser.
Open the screenshot editor →Closest background + accent colours among the listings we've analysed — useful when you want to see the same palette handled by a different team.