Sampled from 6 of Project Gutenberg eBook Reader's App Store screenshots — background, accent and theme, measured by LaunchShots (not something Apple publishes).
#5C6454 bg
#72796B
#B4A474 accent
#FFFFFF text
Gutenberg puts one of the largest libraries ever assembled in your pocket. Over 75,000 public-domain classics — every novel, essay, play and poem that time has released — ready to read, to search, and to carry with you offline. And the ones you love most, you can hear read aloud, with the words lighting up on the page as the narrator speaks. No account. No clutter. Just the whole library, beautifully made. READ EVERYTHING • 75,000+ complete books from Project Gutenberg — fiction, history, philosophy, poetry, drama and more. • A clean, typeset reader that feels like paper, with a real page-curl turn or smooth vertical scrolling — your choice. • Light, sepia and dark themes; adjustable typeface, text size and margins. • Highlight passages, keep bookmarks, and jump anywhere with a full table of contents. • Every book downloads for offline reading — on a plane, on the subway, anywhere. …
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 14 screenshots above are Project Gutenberg eBook Reader's answers to those questions — they're public, they're real, and they made it through Apple's review.
What the numbers say: Project Gutenberg eBook Reader runs a dark set with one background colour (#5C6454) carried across every screenshot — the listing reads as a single poster when the shots sit side by side in search results. The accent colour we picked up, #B4A474, is the one to reuse for badges, arrows and highlighted words if you borrow this look. 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 Book apps approach the same problem? Browse more Book 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.