gpose notices can be hard to read

[Winter-Stormer]

Describe the bug
The little text boxes on the home and character screens that warn of the necessity of /gpose can be hard to read with some combinations of 'Override system theme' and 'Light Mode' settings.

On my Windows 10 system, with a dark system theme, with neither selected the notices are black text on dark grey.
When 'Override system theme' is checked but 'Light Mode' is not, the notices are white text on dark grey.
When 'Override system theme' and 'Light Mode' are both checked, the notices are black text on dark grey.

To Reproduce
With a dark system theme, try setting Anamnesis to

• Not override system theme, or
• Override system theme and use light mode

Expected behaviour
Legible text in any of the three possible configurations

[Luminiari]

Looks like something's getting borked when doing the override. Will take a look at this as soon as I can.