AndreFrelicot/paper-shaders-flutter ? reverse-engineered prompt

Build me a Flutter package that brings over the Paper Shaders collection as reusable widgets.

I want all of the shaders from the original project available in Flutter, with typed parameters so I can use them like regular widgets in my app. Please include a simple catalogue view for browsing the shaders, preset options for each one, and a way to render them deterministically by setting a fixed frame and turning motion off so they work well in screenshots and golden tests.

Also make an example app that shows the full library with live controls, thumbnail previews, fullscreen viewing, and a little snippet that shows the code for the current preset. If some shaders need textures or image resources, include whatever assets are needed so they work out of the box.

Use current Flutter and Dart best practices, and if you need to check any shader or Flutter details online, go ahead and look them up.