Sampled from 3 of SSL証明書チェッカー・期限監視's App Store screenshots — background, accent and theme, measured by LaunchShots (not something Apple publishes).
#FCFCFC bg
#DDDDDD
#4C647C accent
#111111 text
Reading the caption text from the screenshots in your browser…
SSL証明書の期限切れで、訪問者と売上を失っていませんか。 証明書が切れると、ブラウザに警告が表示され、サイト・API・決済が突然止まります。このアプリがあなたの代わりに証明書を見張り、期限の数日前に通知。余裕をもって更新できます。 どんなドメインも数秒でチェック ドメインを入力するだけで、証明書の状態が一目でわかります。 ・発行者とサブジェクト ・有効開始日と有効期限 ・残り日数をひと目で表示 ・SAN(証明書が対象とする全ドメイン) ・自己署名・無効な証明書の検出 ・ポート指定(example.com:8443)と国際化ドメイン対応 登録して自動で通知 ドメインを登録すれば、あとはアプリが監視します。 ・期限前の自動通知(30日・10日・5日前から毎日) ・色分けされた見やすい状態一覧 ・バックグラウンドでの再チェック ・ドメイン一覧のインポート/エクスポート 無料版とPro 3ドメインまで完全無料で監視できます。Proにアップグレードすると: ・監視ドメイン数が無制限 ・通知スケジュールを自由にカスタマイズ ・今後の開発を支援 こん…
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 6 screenshots above are SSL証明書チェッカー・期限監視's answers to those questions — they're public, they're real, and they made it through Apple's review.
What the numbers say: SSL証明書チェッカー・期限監視 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, #4C647C, 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.
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.