Paper plugin mapping internet images into item frames with auto aspect-based grids, high-quality dithering+sharpen, persistence across restarts, anti-dup drops, multi-source URLs, rotation, EN/RU locales, safe and fast by bdiev_.

Key Features:

• Load images from URLs (Instagram, Discord CDN, Telegram, Imgur, ImgBB, any direct link)
• Auto grid sizing by aspect ratio (e.g., 1:1 → 3x3, 16:9 → 4x2, 4:3 → 4x3; manual 3x2 / 5x5 also supported)
• Rectangular grids with placement validation and chunk-load restoration (tile metadata stored)
• High-quality pipeline: multi-step downscale, sharpening, Floyd–Steinberg dithering, palette mapping to Minecraft maps
• Rotate with right-click; delete with left-click (clears group, keeps main frame)
• Anti-dup: auto-created frames do not drop; only one frame drops per grid
• Persistence across restarts (image ID + grid metadata stored in frames)
• Asynchronous downloads (non-blocking for the server)

Commands:

• /artchanger set [size]
• size formats: 3 (square), 3x2 (rectangular). If omitted → auto-sized by aspect ratio.
• /artchanger help — show help

Usage:

• Shift + Right click to paste item in the frame
• Run /artchanger set [size]
• Right-click an item frame to place the image
• Right-click again to rotate
• Left-click to remove the picture (main frame stays; grid auto-frames are removed without drops)

Grid Sizing:

• Auto: aspect-ratio based (1:1→3x3, 16:9→4x2, 4:3→4x3, 3:2→3x2, 2:3→2x3, 9:16→2x4, panorama>2.5→5x2)
• Manual: /artchanger set 4x3 or /artchanger set 5
• Max recommended grid: 10x10

Please, text me if you found any bugs, Thanks!