Launch Kit
Launch Kit guides
Deep how-tos for favicons, PWA and maskable icons, iOS/Android app icons, splash screens, and Open Graph — written for shipping, not theory. Each guide ends on a focused generator or the full Launch Kit. App Store screenshot ASO stays on the blog.
Favicon
- Favicon sizes in 2026: what you still need
Which favicon sizes still matter: ICO 16/32/48, PNG links, SVG, and apple-touch-icon 180, plus what you can skip and how to wire them in HTML.
10 min read
- How to add a favicon in Next.js App Router
Add favicon.ico, PNG icons, and apple-touch-icon in Next.js App Router with file conventions and the Metadata API, including a layout snippet.
9 min read
PWA
- PWA icon sizes: 192, 512, and maskable explained
PWA icon sizes for installability: 192×192, 512×512, and maskable variants, with manifest examples and common install failures.
11 min read
- What is a maskable icon?
Maskable PWA icons: safe zones, OEM shapes, purpose flags, and how to generate padded icons that survive Android cropping.
9 min read
Mobile icons
- iOS app icon sizes and App Store rules
iOS app icon sizes for App Store Connect and Xcode: 1024×1024 master rules, opacity, Contents.json, and why you must not pre-round corners.
10 min read
- Android adaptive icons: foreground, background, safe zone
How Android adaptive icons work: layers, masks, the roughly 66% safe zone, and how to generate launcher assets that survive OEM shapes and Play uploads.
11 min read
- Expo splash screen: complete setup guide
Configure Expo splash.image and backgroundColor, generate splash.png, avoid white flashes, and align Android 12 system splash with your adaptive icon.
10 min read
Launch
- Splash screen best practices
Splash screen guidance: logo placement, timing, light/dark, solid color vs image, and how to keep cold start continuous with the first frame.
9 min read
- Open Graph image best practices for SaaS
OG image size, safe margins, typography, meta tags, and how to generate social previews from the same logo as your favicon.
9 min read
- SaaS launch assets checklist
Checklist of favicons, PWA icons, app icons, splash, OG images, and store assets to ship before a SaaS or app launch, mapped to Launch Kit packs.
10 min read