PREVIEW: https://www.youtube.com/watch?v=MeUkctRoBHs

💎 Why the Developer Edition?

• 🔓 Full Python source — single readable file (~2,400 lines, fully commented)

• 🎨 Rebrand it — change name, colors, accent palette, icon, copyright

• 🔧 Extend it — add custom meta types, audio formats, handling fields, validation rules

• 🌐 Translate it — drop a new language into the LANG dict ("DE": {...} and you're done)

• 📦 Ship your own .exe — included PyInstaller spec + version metadata file + custom build script

• 🧩 Integrate it — pipe builds into your CI/CD, batch-build from CLI, or wrap it in your own tooling

✨ Includes everything from 4.0

🎨 Fluent UI — Win11 Mica, NavigationView, 6 accent presets, PL/ENG switcher
⚡ Threaded build engine — live ETA, cancel mid-build, summary card with KPI tiles
🛠 Handling editor — 10 fields, bulk multipliers, automatic .bak backups
📊 Statistics + Validation — KPI tiles, per-extension breakdown, modelName collision detection
🔔 Premium UX — toasts, themed dialogs, right-click menu, keyboard shortcuts, empty states
📖 Built-in tutorial (PL/ENG)
💾 JSON presets, recent folders memory, dry-run mode, disk-space check

📦 What you get

• PackMaster_v4_Fluent.py — full source (~2,400 lines)

• zgico.ico — branded app icon