As long as you don’t execute set elements or elements from string after first run, spinner works as it should and it is using Spinner Color for both text and the arrow
After you execute set elements it falls back to default theme color (white) and text size (which in my opinion is a bug as it should return black)
Second bug, 2 spinners different colors, if I choose one of them then the other one inherits the color from the first one and vice versa but only on the arrow
Default theme Test_Spinner.apk (5.0 MB)
Light theme Test_Spinner.apk (5.0 MB)