Yes, I am aware of that, but nothing happens.
If I click on, say, Path Field / Active panel / Normal text and background color I get a Choose Text colors panel telling me that i have to use Windows default settings, (where in Win 10 though?).
If I click the dropdown to change Windows Standard Colors to Custom Colors I appear to have an infinite choice. I can select a color from that display and click on that. The display shows the change in the Sample text panel but then, when I click OK, nothing appears to happen, even after restarting MC