striker561/Avnac-Studio ? reverse-engineered prompt

Build me a native desktop design app like a lightweight Canva alternative.

I want users to create poster, social graphic, and layout files in a canvas editor, then manage them from a files screen where they can open, duplicate, rename, delete, import, and export workspaces. The editor should let people add text, basic shapes, lines, arrows, and images, then move, resize, rotate, crop, group, align, and reorder things easily. It should also support layers, backgrounds, blur, opacity, shadows, corner radius, and simple text styling like font, size, weight, and alignment.

Make it work as a real desktop app with fast startup, offline use, native file storage, autosave, and native save dialogs for exports. Include multi page workspaces, page import and export, and vector boards for nested editable areas. If you need to check current docs for the desktop framework or image libraries, look them up online first.