A professional diagramming tool that helps users visualize complex information through easy-to-understand diagrams.
Hello Paul Brace
Thank you for taking the time to provide such a detailed description of the issue and for including specific examples of the affected UI elements.
Before anything else, I'd like to clarify that this forum is primarily a user-to-user community. While discussions here can help raise awareness and gather feedback from other users, this is not the official channel through which product changes or UI improvements are tracked by the Microsoft engineering teams.
To ensure your feedback reaches the appropriate team, I would strongly recommend submitting it through Microsoft's official Feedback Portal -Microsoft 365 Feedback Hub
That platform is specifically designed for product feedback, feature requests, usability concerns, and accessibility-related issues. Feedback submitted there can be reviewed and considered directly by the product team as they evaluate potential improvements and enhancements for future releases.
I encourage you to submit the report through the Microsoft Feedback Portal and include "screenshots" (if available), and the contrast comparisons you have outlined above. Doing so will give the feedback the best chance of being reviewed by the Visio product team for consideration in future updates.
You can also "share the link" of your feedback here so other users can vote it to support you.
Thank you again for documenting the issue so thoroughly and for helping improve the Visio user experience for everyone.
Stay safe and happy!