Cupertino widget catalog has unfortunate placeholder images

[Piinks]

Page URL

https://docs.flutter.dev/ui/widgets/cupertino

Page source

No response

Describe the problem

While discussing as a team, we found that these placeholders looked more like something is broken.

Expected fix

Some ideas...

• A different choice of placeholder image,
• The framework team can help capture some images where relevant
• Or in another issue I am about to file, we can be more selective about what widgets are in the catalog, making it more curated.

Additional context

No response

I would like to fix this problem.

• [ ] I will try and fix this problem on docs.flutter.dev.