Reproduction steps:
1. Ensure that MacOS is in dark mode
2. Open Unity
3. Open Unity Bug Reporter by clicking Help -> Report a Bug...
Expected result: Bug Reporter Dropdown and Search Results Text has good contrast making it easy to read
Actual result: Bug Reporter Dropdown and Search Results Text has bad contrast making the text hard to read
Reproducible with: 2021.1.0a4, 2021.2.0a5, 2021.1.7f1, 2021.2.0a17
Not reproducible with: 2019.4.26f1, 2020.3.8f1, 2021.1.0a3, 2021.2.0a4 (in a way reproducible but dark mode support was not introduced back then at all)