Sampled from 3 of 俺の電工2種 - 第二種電気工事士の筆記試験アプリ's App Store screenshots — background, accent and theme, measured by LaunchShots (not something Apple publishes).
#FCFCFC bg
#DDDDDD
#FC2404 accent
#111111 text
Reading the caption text from the screenshots in your browser…
【俺の電工2種】は第二種電気工事士の筆記試験問題の過去30期分を手軽にテスト出来るアプリです。 【特徴】 ・平成21年度から令和6年度下期まで、計30期分の筆記試験問題1800問(※1)を収録しています。 ・クイズのようなシンプルな正誤判定と、年度別の簡易合否判定が行えます。 ・基礎理論や配線図等のカテゴリ別の練習が行えます。 ・テスト中の中断と再開ができるので、電車やバスでのちょっとしたスキマ時間でも気軽にチャレンジできます。 ・各問ごとに回答数と正答数が記録されます。苦手な問題が分かるようになります。 ・Game Center対応(※2)で実績を解除しながらテストが楽しめます。 ※1 各問題の著作権は「一般財団法人 電気技術者試験センター(http://www.shiken.or.jp/)」に帰属しています。 ※2 「Game Center」へのログインが必要です。「Game Center」はiPhoneの「設定」から、またはアプリ初回起動時に設定出来ます。「Game Center」へのログインをキャンセルしても<達成項目>以外の全ての機能をご利用いただけます。
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 俺の電工2種 - 第二種電気工事士の筆記試験アプリ's answers to those questions — they're public, they're real, and they made it through Apple's review.
What the numbers say: 俺の電工2種 - 第二種電気工事士の筆記試験アプリ 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, #FC2404, 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 Education apps approach the same problem? Browse more Education 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.