The dropdown lists for light/dark mode and language switching adopt a rounded corner border design

[tszlznl]

What version of starlight are you using?

0.31.1

What is your idea?

Optimize the dropdown lists for light/dark mode and language switching, adopting a rounded corner border design to better align with the overall document style.

Why is this feature necessary?

Just a small suggestion, hoping you can do even better.
Enhance the experience for users with obsessive-compulsive tendencies.

Do you have examples of this feature in other projects?

No response

Participation

• I am willing to submit a pull request for this feature.