After checking the latest update of component pack I see that basically no change has been done to the TAdvListEditor as promised above.
Have you tested the component on the high contrast theme?
Here is how it looks - notice again the unreadable "a" on the white background.
Just for the reference, this is how regular edit box looks like (TEdit) on the same theme:
Basically, the clWindow is not erased to the high contrast theme and is still not being replaced with the color used by the theme as I explained in my original post posted a few months ago.
Will we see this bug fixed? If so, please give time estimate.