New Features & Improvements

• UI-to-Code Migration: Fully migrated all dialog and overlay XML layouts (Settings, Batch Converter, Shortcut Creator, Print Dialog, etc.) into native C++ code to improve startup times, UI responsiveness, and custom theme rendering.
• LMB Rectangular Selection: Added the ability to select multiple files in the Folder Grid view by drawing a selection box using the Left Mouse Button (LMB).
• Open Only Selected: Added a new context menu option to open and view only the currently selected files, preventing other files in the folder from entering the slideshow/navigation queue.
• Folder View Floating Messages: Integrated FloatingMessage overlays into the Folder view to display status and error notifications directly over the grid.
• Pseudo-Fullscreen Mode: Redesigned the fullscreen mode transition to use a borderless window, eliminating screen flicker when toggling fullscreen.

Bug Fixes

• Clipboard Color Adjustments: Fixed viewport image copy (Shift+C) to correctly apply active color adjustment settings (such as exposure, contrast, brightness, temperature, tint, saturation, and hue) to the image saved in the clipboard.
• Drag-and-Drop Temp File Leak: Fixed an issue where temporary files created during image editing drag-and-drop operations were not cleaned up properly from the temporary directory.
• High-DPI Scaling Adjustments: Fixed UI layouts and scaling behavior in the color adjustments panel when using 125% and 150% display scaling.
• Windows Icon Associations: Fixed filetype icon association compatibility issues on Windows.