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:

-> This is a bug in the Breeze style. With fusion style and windowsvista style icons and text have correct colors.

Wrong coloring of Close button icon:

Wrong/inconsistent coloring of disabled menu entry icons:

Wrong coloring of Close menu entry icon:

Wrong coloring of config module title:

-> This is a bug in the Breeze style. With fusion style and windowsvista style the title is yellow on black (as other text).