Hi Polska,
Sorry for your experience.
However, you can change the colors of the presets there as well, or use custom CSS for better experience.
For the preset3, menu text color is black, and it's looking good for the default home menu there, but not for personal portfolio variation as it has a black background color for the modal menu, which is designed in template.css to get present a different menu look:
https://prnt.sc/D9jAvXRXlq8T
https://prnt.sc/RplRnu7aWhug
So, if you choose your default template style and default home page layout, then according to those choices, you have options to choose your main colors from preset edit settings or from custom style as well.
Hope this helps anyways!
Best Regards