Color accuracy

[mjeanmonod]

Preflight Checklist

• I agree to follow the Code of Conduct that this project adheres to.
• I have searched the issue tracker for a feature request that matches the one I want to file, without success.

You must agree to search and the code of conduct. You must fill in this entire template. If you delete part/all or miss parts out your issue will be closed.

Describe the bug
A clear and concise description of what the bug is.
In the desktop application the colors are not accuratly displayed, this is not the case in the web application. See screenshots below. The color grabber is the one contains in the Microsoft PowerToys

To Reproduce
Steps to reproduce the behavior:

1. Go to '...'
2. Click on '....'
3. Scroll down to '....'
4. See error

Expected behavior
A clear and concise description of what you expected to happen.
Have the good color displayed

Screenshots
If applicable, add screenshots to help explain your problem.
Web App :

Desktop: (same file)

draw.io version (In the Help->About menu of the draw.io editor):

• draw.io version 24.4.13

Desktop (please complete the following information):

• OS: Windows, MacOS, Linux... -> Windows

Additional context
Add any other context about the problem here.

[github-actions]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions. See the FAQ for more information.