Dark mode issue (dark background, dark text)

The dark mode should have white color text if using System label color.

But in iOS 13 dark mode, the background is dark, and the input text is still dark.
How do I put screenshot by the way?

Start by reproducing the issue on iOS 13 in the repository's UITextField subclass with system label colors and dark mode enabled. Inspect how input text color is selected, then verify that the input text remains readable against the dark background in both light and dark appearances.

Written by the indexing model from the issue text.