Color issus in Django Admin dark mode

[jonocodes]

Description

When using dark mode that comes with django admin, the colors make the widget unreadable.

In this screenshot:

• Regions is using forms.MultipleChoiceField
• Operators is using forms.ChoiceField(widget=Select2MultipleWidge

Steps to Reproduce

1. Create a Select2 field. In my case I am using forms.ChoiceField(widget=Select2MultipleWidget, choices=get_sorted_operator_choices())
2. Render the page and see that the text is white in a white box.

Note: I am not using the built in admin autoselect since these are not foreign keys. It is a foreign table, but using a different field then the foreign key.

I'm using vanilla Django 5.x. I believe dark mode was introduced at 3.2.

Expected Behavior

Like other dark mode select fields, the field should be black and the text white.