Usabillity: Visibility of filter selection is not immediately obvious

[spacefront]

Description

If a user has ever set filters on a page and returns to that page, it is not immediately obvious that filters are set.

Current combination of colors - light yellow and white on light gray - not easy to see depending on the monitor:

Example of a stronger emphasis:

[zonky2]

As discussed on Contao Camp 2023 / https://github.com/contao-community-alliance/contao-camps/blob/main/2023/camp-2023.md#samstag-06052023