css mobile menu color problem

I ran into an issue while using this theme. I have a footer navigational menu where the background is dark and the text is white. When I tested in on mobile the menu text was black even though I set them to be white. After poking around, I noticed that the theme had (for some unknown reason) hardcoded a color declaration in its stylesheet.

@media screen and (min-width: 320px) and (max-width: 599px) {
span.wp-block-navigation-item__label {
color: #000;
}

This is not good. Please remove all direct color declarations from the css so that the cms can do what it’s supposed to do unimpeded.