Describe the problem that you experienced

When dark mode is enabled it is hard to see toggle buttons in examples.

Enter the URL of the topic with the problem

https://angular.dev/guide/animations

Describe what you were looking for in the documentation

No response

Describe the actions that led you to experience the problem

No response

Describe what you want to experience that would fix the problem

Make buttons more visible

Add a screenshot if that helps illustrate the problem

If this problem caused an exception or error, please paste it here

If the problem is browser-specific, please specify the device, OS, browser, and version

Provide any additional information here in as much as detail as you can