0.4.1

New Features: 

Last Project Cache: Attempts to cache the last session for quick access upon reopening.

Layer Alpha Blending: Implemented alpha blending for smoother per-layer opacity control.

Color Palette Expansion: Added new thematic color palettes, including Fire, Metal, and Common Alchemy.

Layer Visibility Fix: Fixed an issue where toggling visibility did not work on underlying layers.

Minor Bug Fixes: Resolved various minor bugs and stability issues.