Version 3.4.4 (68)

New
- Adaptive app icons across all densities (round, foreground/background) and migration to WebP → smaller app size and crisper rendering.
- Updated Play Store launcher graphic.

Improvements & Fixes
- Diminished tuning corrected (interval schema) → more accurate note/frequency display; corresponding tests updated.

Note
- Focus on accuracy, packaging, and release stability; no changes to app flow.