Mermaid .mmd file previews are low contrast and illegible in Dark Mode

[sfriedman-cape]

🏷️ Discussion Type

Bug

💬 Feature/Topic Area

Code Search and Navigation

Body

I'm trying to view the preview for a sequence diagram in an .mmd file, similar to:

sequenceDiagram
    autonumber

    participant Bob
    participant Alice
    participant Tim

    Bob->>Bob: Bob takes Action A
    Bob->>Bob: Bob takes Action B

    Bob->>Alice: Give a key to Alice
    Alice->>Bob: Return a response back to Bob

    Bob->>Tim: Give a key to Tim
    Tim->>Bob: Success

The rendering for the file in Dark Mode is illegible. Each of the actions is rendered as gray text on a black background, which is very difficult to read.

[github-actions[bot]]

💬 Your Product Feedback Has Been Submitted 🎉

Thank you for taking the time to share your insights with us! Your feedback is invaluable as we build a better GitHub experience for all our users.

Here's what you can expect moving forward ⏩

• Your input will be carefully reviewed and cataloged by members of our product teams. 
  • Due to the high volume of submissions, we may not always be able to provide individual responses.
  • Rest assured, your feedback will help chart our course for product improvements.
• Other users may engage with your post, sharing their own perspectives or experiences. 
• GitHub staff may reach out for further clarification or insight. 
  • We may 'Answer' your discussion if there is a current solution, workaround, or roadmap/changelog post related to the feedback.

Where to look to see what's shipping 👀

• Read the Changelog for real-time updates on the latest GitHub features, enhancements, and calls for feedback.
• Explore our Product Roadmap, which details upcoming major releases and initiatives.

What you can do in the meantime 💻

• Upvote and comment on other user feedback Discussions that resonate with you.
• Add more information at any point! Useful details include: use cases, relevant labels, desired outcomes, and any accompanying screenshots.

As a member of the GitHub community, your participation is essential. While we can't promise that every suggestion will be implemented, we want to emphasize that your feedback is instrumental in guiding our decisions and priorities.

Thank you once again for your contribution to making GitHub even better! We're grateful for your ongoing support and collaboration in shaping the future of our platform. ⭐

[queenofcorgis]

Hi @sfriedman-cape 👋🏼 ,

Thanks for reporting this, to help our team best investigate would you mind sharing your operating system, browser and version, and any screenshots/recordings of the preview please?