With the dark high contrast modes there are some problems with the icon coloring. I tested this on Windows 10 with high contrast mode No. 1.
Wrong coloring of toolbar icons and text:
{F21155967}
Wrong coloring of Close button icon:
{F21155972}
Wrong/inconsistent coloring of disabled menu entry icons:
{F21155974}
Wrong coloring of Close menu entry icon:
{F21155976}
Wrong coloring of config module title:
{F21155979}