# IOS Icon Fix

> Remove alpha channel (transparency) from iOS app icons. Apple App Store rejects icons with transparency. Use this after regenerating app icons or before iOS archive/upload to fix the "Invalid large app icon - can't be transparent or contain an alpha channel" error. Use when this capability is needed.

- Skill: `tomevault-io/ios-icon-fix` (Agent Skill, multi-file: 2 files)
- Install (CLI): `npx skillmds@latest add tomevault-io/ios-icon-fix`
- Raw SKILL.md: https://api.skillmd.com/api/skills/tomevault-io/ios-icon-fix/raw
- Safety review: pending (external: skill-scanner PASS, skillspector PASS)
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: Coding & Dev Tools
- Author: tomevault-io (https://skillmd.com/u/tomevault-io)
- Updated: 2026-09-17
- Page: https://skillmd.com/skills/tomevault-io/ios-icon-fix

---


# iOS Icon Fix

Remove alpha channel from iOS app icons to comply with Apple App Store requirements.

## When to Use

- Before uploading to App Store Connect / TestFlight
- After regenerating iOS app icons
- When you see error: "Invalid large app icon... can't be transparent or contain an alpha channel"

## Usage

Run the script:

```bash
python3 .claude/skills/ios-icon-fix/scripts/remove_alpha.py
```

Or specify a custom path:

```bash
python3 .claude/skills/ios-icon-fix/scripts/remove_alpha.py path/to/AppIcon.appiconset
```

## What It Does

1. Finds all PNG icons in the appiconset directory
2. For each icon with alpha channel:
   - Creates white background
   - Composites the icon onto it
   - Saves without alpha
3. Verifies all icons have no transparency

## Requirements

- Python 3
- Pillow: `pip install Pillow`

## Default Icon Location

```
decentpaste-app/src-tauri/gen/apple/Assets.xcassets/AppIcon.appiconset/
```

---
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<!-- tomevault:4.0:skill_md:2026-04-11 -->