Inherit theme colors from Windows 10 accent colors
The application should support inheriting the accent colors that Windows 10 applies to the Start Menu and other Windows widgets, including the automatic accent colors.
It should also inherit light/dark theme from the Windows 10 app mode setting.
Rob Quickenden commented
I have a 2,500 seat customer that has the same request. They would like the teams client (they don't like the purple) to pick up either the accent colour from Win10 or for users to be able to choose a different colour.
Sean Ellis commented
What's really annoying about this problem is that honoring the user's choice of fonts and colors is highlighted as one of the things you should always do (by default, at least), in Microsoft's own UI guidelines.