December 2024 (2024-12) summary for ghostty-org/ghostty: Delivered a UI feature to enhance visual blending between the fullscreen background and the focused surface. Implemented by setting the alpha component of the focused surface's background colour to 0.0, enabling a transparent backdrop that improves aesthetics and focus. No major bug fixes documented this month; primary effort focused on feature delivery and visual polish. Impact: cleaner UI, improved user experience and consistency with design language; supports better readability and immersive workflows for terminal-focused surfaces. Technologies/skills: UI/UX design, color/alpha manipulation, code traceability via Git commits, repository collaboration in Ghostty project.