Sampled from 3 of PosetQuest's App Store screenshots — background, accent and theme, measured by LaunchShots (not something Apple publishes).
#FCFCFC bg
#DDDDDD
#5474F4 accent
#111111 text
Reading the caption text from the screenshots in your browser…
PosetQuest is an interactive learning app for discrete mathematics and order theory. Explore partial orders through colorful Hasse diagrams — no pen and paper required. Choose from built-in examples such as set inclusion, divisibility, lexicographic order, and natural order. Adjust parameters to generate posets instantly, inspect covering relations, and tap nodes to view up-sets and down-sets. Metrics Studio computes height, width, density, and topological order, with optional chain and antichain highlights on the diagram. Dilworth Lab verifies Dilworth's theorem by building chain decompositions and comparing them to maximum antichains. Additional tools include a comparability matrix with axiom checks and an element comparator for join, meet, and pairwise relations.
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 3 screenshots above are PosetQuest's answers to those questions — they're public, they're real, and they made it through Apple's review.
What the numbers say: PosetQuest runs a light set with one background colour (#FCFCFC) 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, #5474F4, 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 Graphics & Design apps approach the same problem? Browse more Graphics & Design 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.