NegPy 0.19.0

0.19.0

• Added Metadata panel: new "Metadata" tab in the session panel — set Film stock, Format, Developer, Push/Pull, and Scanner info written as EXIF tags into exported files. Shows inherited EXIF from the source file (camera make/model, lens, exposure settings). Optionally sync custom metadata across all files in a batch export.
• Added Detect Aspect Ratio button in the Geometry sidebar (crosshairs icon) — finds the film frame in the image and sets the crop ratio to the closest standard aspect ratio.
• Added Same folder as source export option — exports files to their source directory instead of a fixed export path.
• Added Overwrite existing files toggle — when disabled, exports get incrementing suffixes (_2, _3) to avoid overwriting.
• Sticky flip: Flip Horizontal/Vertical buttons now show a pressed state when active and their state persists across files and app restarts (applied to new files only — files with saved edits keep their own flip).
• Tutorial overlay now shows keyboard navigation hints at the bottom.
• Fix: mouse input in tutorial (Windows) @alessandrv
• Fix: exports are now written atomically — no partial files left on crash or interrupt.
• Fix: Rotate CCW/CW buttons (and [ / ] shortcuts) reversed direction when the image was flipped horizontally or vertically (but not both).
• Performance & stability improvements.