No visual difference between drop-down menus and text inputs

[pascalwittler]

Describe the bug

In the following screenshot of the user settings, I can not see any visual difference between text inputs (first three options) and select menus (last three options).

A common representation of drop-down menus is an arrow or triangle as a marker on the right edge of the form field to suggest that something (= the select options) can be expanded here.

Steps to reproduce

1. Click on your user avatar
2. Choose "Einstellungen" ("Settings" / "Preferences")

Browser console logs

No response

Browser

No response