Screenshot style breakdown
Sampled from 3 of iMuJoCo's App Store screenshots — background, accent and theme, measured by LaunchShots (not something Apple publishes).
#040404 bg
#272727
#FCD494 accent
#FFFFFF text
Screenshots
Icon palette
About this app
iMuJoCo brings the MuJoCo physics engine to iPhone and iPad with native Swift UI and Metal rendering. Stream simulation state over UDP and control robot models in real-time from external applications. Use the provided driver to send commands and receive state — ideal for prototyping robotics controllers, testing motion policies, and visualising simulations on the go. Features: - Real-time physics simulation powered by Google DeepMind's MuJoCo - UDP streaming — receive state and send control commands from external apps Driver provided for easy integration - Native Metal rendering for smooth, interactive 3D visuals - Built-in models including Unitree G1, H1, and more - Designed for iPhone and iPad - More features to come iMuJoCo will be open-sourced under the Apache 2.0 license.
App details
What you can learn from iMuJoCo
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 iMuJoCo's answers to those questions — they're public, they're real, and they made it through Apple's review.
What the numbers say: iMuJoCo runs a dark set where the background shifts from screenshot to screenshot (first shot #040404) — each image has to stand on its own, so the captions carry more of the story. The accent colour we picked up, #FCD494, 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 Developer Tools apps approach the same problem? Browse more Developer Tools apps in the showcase.
Take what works into your own screenshots
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 →Apps with a similar look
Closest background + accent colours among the listings we've analysed — useful when you want to see the same palette handled by a different team.