Comment 22 for bug 327996

Observation 1: "Dark Room" is not a dark theme, not by our Standards.
Color.IsDark() returns "TRUE" for a luminance of 38 (of 255) or less. "Dark
Rooms" dark color is 0x4c4039, which is dark, but has a higher luminance
obviously. So it is technically correct, that HighContrast autodetection returns
"no high contrast".

-> that means that the normal icon set is used without user intervention is
correct. As sts mentioned, these icons are not designed for a dark background.
Which you can see everywhere, no only in math's picker.

Observation 2: Switching the icon theme in "Tools->Options->View" indeed is not
working immediately in math's formula elements picker, the new set is only used
after it is closed an opened again.

My conclusion is, that this is not an accessibility issue (removing keyword).
And short of a redesign of the Galaxy icon set, the only bug left here is that
the window in question does not react to changing the icon theme on the fly like
all other toolbars do.

Back to the owner of that math window.