It would be helpful if shaders could have an optional fallback or preview image, similar to video posters.

Videos in Framer can show a poster/thumbnail before the video is loaded. For shaders, something similar could improve the loading experience, especially on pages where the shader is used above the fold.

I noticed this while working on a template. The shader looks great once it is loaded, but if it takes a moment, the section can feel empty or unfinished at first.

A simple option to upload a static fallback image for a shader would make it easier to keep the page visually polished while the shader is loading.