Image list is empty. A: Make sure the folder contains at least one supported image format. Check that recursive mode didn’t cause an empty scan.

"theme": "dark", "bg_color": "#000000", "slideshow_delay": 3, "confirm_delete": true, "high_quality_zoom": true, "cache_size_mb": 512, "keybindings": "next": "Right", "prev": "Left"

Can’t open HEIC images. A: Install pyheif (Linux/macOS) or use the Windows HEIC extension + pillow-heif .